Path 26B Flashcards


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1

Does osteoarthritis present with symmetric or asymmetric joint involvement?

Does rheumatoid arthritis present with symmetric or asymmetric joint involvement?

asymmetric

symmetric

2

Does osteoarthritis present with systemic symptoms (e.g. fever, fatigue)?

Does rheumatoid arthritis present with systemic symptoms (e.g. fever, fatigue)?

No

Yes

3

Knee cartilage loss in osteoarthritis begins medially or laterally?

medially

4

What demographic is associated with rheumatoid arthritis?

_____ > _____ years of age

Women > 65 years of age

5

Btwn RA and Osteoarthritis, which one improves with activity?

RA

6

What demographic is associated with ankylosing spondylitis?

_____ adult _____

Young adult males

7
card image

Ankylosing spondylitis is characterized by a(n) "_____ _____" appearance on X-ray

bamboo spine

8

Psoriatic arthritis most commonly involves the _____ joints of the hands and feet.

DIP

9

Psoriatic arthritis is associated with "_____" fingers and toes

sausage

10
card image

Psoriatic arthritis is associated with a(n) "pencil-in-____" deformity on X-ray

pencil-in-cup

11

Is gout more common in males or females?

Males

12

Does gout present with symmetric or asymmetric joint involvement?

asymmetric

13

Is gout more common in males or females?

Is pseudogout more common in males or females?

Males

both equal

14

A uterine mass is composed of a benign neoplastic proliferation of smooth muscle arising from the myometrium. Which diagnosis is most likely?

A. Leiomyoma

B. Leiomyosarcoma

C. Endometrioma

D. Adenomyosis

A. Leiomyoma

15

Uterine leiomyomas arise from which tissue layer?

A. Endometrium

B. Myometrium

C. Perimetrium

D. Serosa

B. Myometrium

16

Which enzyme is deficient in Lesch-Nyhan syndrome?

A. Adenosine deaminase

B. Xanthine oxidase

C. HGPRT

D. Dihydrofolate reductase

C. HGPRT

17

HGPRT deficiency produces what effect on uric acid production?

______

Increases

18

What is the inheritance pattern of Lesch-Nyhan syndrome?

A. X-linked recessive

B. Autosomal recessive

C. X-linked dominant

D. Autosomal dominant

A. X-linked recessive

19

HGPRT deficiency causes what change in de novo purine synthesis?

A. Complete inhibition

B. Increased synthesis

C. Decreased synthesis

D. Unchanged synthesis

B. Increased synthesis

20

Which mnemonic can be used to remember manifestations of Lesch-Nyhan syndrome?

A. JONES

B. C-MOPS

C. HGPRT

D. FROM JANE

C. HGPRT

  • H: Hyperuricemia
  • G: Gout
  • P: Poor intellect / Pissed off (aggression)
  • R: Recessive (X-linked recessive)
  • T: Tense muscles (dystonia)

21

The articular surfaces of adjoining bones are covered by what tissue?

A. Fibrocartilage

B. Elastic cartilage

C. Dense connective tissue

D. Hyaline cartilage

D. Hyaline cartilage

22

Which collagen type predominates in articular hyaline cartilage?

Type II collagen

23

Articular cartilage of adjoining bones is surrounded by what structure?

A. Tendon sheath

B. Joint capsule

C. Periosteum

D. Bursa

B. Joint capsule

24

Which HLA subtype is associated with seronegative spondyloarthritis according to these notes?

A. HLA-DR4

B. HLA-DR1

C. HLA-B2

D. HLA-DQ2

C. HLA-B2

25

Synovial fluid is particularly rich in which substance?

A. Hyaluronic acid

B. Uric acid

C. Collagen II

D. Fibrin

A. Hyaluronic acid

26

What is the major function of synovial fluid?

A. Increase bone formation

B. Lubricate joint motion

C. Promote cartilage erosion

D. Produce osteophytes

B. Lubricate joint motion

27

What is the most common type of arthritis?

Osteoarthritis

28

Progressive degeneration of articular cartilage from wear and tear describes which disease?

A. Rheumatoid arthritis

B. Psoriatic arthritis

C. Gout

D. Osteoarthritis

D. Osteoarthritis

29

Which sex is more commonly affected by osteoarthritis?

Females

30

What is the major risk factor for osteoarthritis?

A. Smoking

B. Age over 60

C. Silica exposure

D. HLA-DR4

B. Age over 60

31

Which additional factor increases osteoarthritis risk?

A. Low body weight

B. Male sex

C. Obesity

D. Young age

C. Obesity

32

Which history increases the risk of developing osteoarthritis?

A. Viral infection

B. Autoimmunity

C. Hyperuricemia

D. Joint trauma

D. Joint trauma

33

Which hand joints are classically affected by osteoarthritis?

A. MCPs, wrists, elbows

B. MCPs, PIPs, wrists

C. PIPs, DIPs, first CMC

D. DIPs, wrists, MCPs

C. PIPs, DIPs, first CMC

34

Which thumb joint is commonly affected in osteoarthritis?

A. First MCP

B. First DIP

C. Radiocarpal joint

D. First CMC

D. First CMC

35

A patient develops knee pain after prolonged use. Which disease best fits this weight-bearing joint pattern?

A. Osteoarthritis

B. Rheumatoid arthritis

C. Septic arthritis

D. Reactive arthritis

A. Osteoarthritis

36

Which joints are commonly affected by osteoarthritis after use?

A. Shoulders and elbows

B. Hips and knees

C. MCPs and wrists

D. Cervical spine only

B. Hips and knees

37

Which spinal region is commonly affected by osteoarthritis?

A. Upper cervical spine

B. Thoracic spine

C. Lumbar spine

D. Sacrum spine

C. Lumbar spine

38

Fragments of cartilage floating within an osteoarthritic joint are called what?

A. Pannus fragments

B. Rheumatoid bodies

C. Tophi

D. Joint mice

D. Joint mice

39

Eburnation in osteoarthritis refers to what process?

A. Polishing of subchondral bone

B. Destruction of synovium

C. Calcification of cartilage

D. Necrosis of ligaments

A. Polishing of subchondral bone

40

Why does eburnation occur in osteoarthritis?

A. Immune-complex deposition

B. The bone friction causes it

C. Crystal deposition

D. Synovial infection

B. The bone friction causes it

41

What are osteophytes in osteoarthritis?

A. Cartilage fragments

B. Synovial granulomas

C. Reactive bony outgrowths

D. Uric acid deposits

C. Reactive bony outgrowths

42

Joint-space narrowing with osteophyte formation on imaging most strongly suggests what?

A. Rheumatoid arthritis

B. Septic arthritis

C. Gout

D. Osteoarthritis

D. Osteoarthritis

43

Which medications are used for osteoarthritis pain management?

A. NSAIDs or acetaminophen

B. Methotrexate or azathioprine

C. Rituximab or abatacept

D. Allopurinol or colchicine

A. NSAIDs or acetaminophen

44

Which treatment may be injected directly into an osteoarthritic joint?

A. Penicillin

B. Glucocorticoids

C. Methotrexate

D. Allopurinol

B. Glucocorticoids

45

Synovitis followed by formation of an inflammatory pannus characterizes which disease?

A. Osteoarthritis

B. Gout

C. Rheumatoid arthritis

D. Septic arthritis

C. Rheumatoid arthritis

46

What is a pannus in rheumatoid arthritis?

A. Cartilage calcification

B. Bony outgrowth

C. Uric acid deposit

D. Inflamed granulation tissue

D. Inflamed granulation tissue

47

Which HLA subtype is a risk factor for rheumatoid arthritis?

A. HLA-DR4

B. HLA-B2

C. HLA-DQ2

D. HLA-A3

A. HLA-DR4

48

Which additional HLA subtype is associated with rheumatoid arthritis?

A. HLA-B27

B. HLA-DR1

C. HLA-DQ8

D. HLA-A2

B. HLA-DR1

49

Which group contains only rheumatoid arthritis risk factors?

A. HLA-DR4, DR1, smoking, silica

B. Obesity, trauma, age, female sex

C. HLA-B2, alcohol, obesity, trauma

D. Age, smoking, hyperuricemia, asbestos

A. HLA-DR4, DR1, smoking, silica

50

Which hand joints are classically affected by rheumatoid arthritis?

A. DIPs, first CMC, wrists

B. PIPs, MCPs, wrists

C. DIPs, PIPs, first CMC

D. MCPs, DIPs, first CMC

B. PIPs, MCPs, wrists

51

Which deformity is characteristic of rheumatoid arthritis?

A. Radial finger deviation

B. Ulnar wrist deviation

C. Ulnar finger deviation

D. Isolated DIP deviation

C. Ulnar finger deviation

52

Rheumatoid arthritis may produce which wrist deformity?

A. Ulnar wrist deviation

B. Volar wrist deviation

C. Dorsal wrist deviation

D. Radial wrist deviation

D. Radial wrist deviation

53

Long-standing rheumatoid arthritis can cause subluxation of which region?

A. Cervical spine

B. Lumbar spine

C. Thoracic spine

D. Sacroiliac joint

A. Cervical spine

this is very dangerous

54

Which imaging pattern most strongly suggests rheumatoid arthritis?

A. Osteophytes and sclerosis

B. Narrowing, erosions, periarticular osteopenia

C. Chondrocalcinosis and cysts

D. Joint mice and eburnation

B. Narrowing, erosions, periarticular osteopenia

55

Rheumatoid nodules contain which central histologic finding?

A. Caseous necrosis

B. Fat necrosis

C. Fibrinoid necrosis

D. Liquefactive necrosis

C. Fibrinoid necrosis

56

Which cells characteristically surround the necrotic center of rheumatoid nodules?

A. Eosinophils

B. Plasma cells

C. Giant cells

D. Palisading histiocytes

D. Palisading histiocytes

57

Where can rheumatoid nodules occur?

_____ and _____ organs

skin and visceral organs

58

Which visceral organ is specifically listed as a site of rheumatoid nodules?

______

Lung

59

A patient with long-standing rheumatoid arthritis develops splenomegaly and neutropenia. Which diagnosis is most likely?

A. Felty syndrome

B. Reiter syndrome

C. Sjögren syndrome

D. Still disease

A. Felty syndrome

60

Which type of amyloidosis is associated with rheumatoid arthritis?

A. AL amyloidosis

B. ATTR amyloidosis

C. Secondary AA amyloidosis

D. Dialysis-related amyloidosis

C. Secondary AA amyloidosis

61

Rheumatoid factor is usually which immunoglobulin class?

A. IgA

B. IgG

C. IgE

D. IgM

D. IgM

62

Rheumatoid factor is directed against which target?

A. Fc portion of IgG

B. Fab portion of IgM

C. Fc portion of IgA

D. Citrullinated collagen

A. Fc portion of IgG

63

Which antibody is particularly specific for rheumatoid arthritis?

A. ANA

B. Anti-CCP

C. Anti-dsDNA

D. Anti-centromere

B. Anti-CCP

64

Anti-CCP antibodies recognize which type of antigen?

A. Double-stranded DNA

B. Cardiolipin

C. Citrullinated peptides

D. Basement membrane

C. Citrullinated peptides

65

Which arthritis is associated with noninflammatory synovial fluid?

A. Rheumatoid arthritis

B. Reactive arthritis

C. Psoriatic arthritis

D. Osteoarthritis

D. Osteoarthritis

66

What synovial-fluid WBC count is characteristic of osteoarthritis in these notes?

A. Below 2,000/mm³

B. Above 5,000/mm³

C. Above 50,000/mm³

D. Below 100/mm³

A. Below 2,000/mm³

67

Which arthritis is associated with inflammatory synovial fluid?

A. Osteoarthritis

B. Rheumatoid arthritis

C. Degenerative arthritis

D. Traumatic arthritis

B. Rheumatoid arthritis

68

What synovial-fluid WBC count is characteristic of rheumatoid arthritis in these notes?

A. Below 500/mm³

B. Below 2,000/mm³

C. Above 5,000/mm³

D. Exactly 2,000/mm³

C. Above 5,000/mm³

69

Heberden nodes are bony swellings involving which joints?

A. MCP joints

B. PIP joints

C. Wrist joints

D. DIP joints

D. DIP joints

70

Bouchard nodes are bony swellings involving which joints?

A. PIP joints

B. DIP joints

C. MCP joints

D. CMC joints

A. PIP joints

71

Seronegative spondyloarthropathies characteristically lack which laboratory marker?

A. ANA

B. Anti-CCP

C. Rheumatoid factor

D. Anti-dsDNA

C. Rheumatoid factor

72

Which skeletal region is characteristically involved in seronegative spondyloarthropathies?

A. Distal phalanges

B. Upper extremities

C. Peripheral skeleton

D. Axial skeleton

D. Axial skeleton

73

Which mnemonic summarizes the major seronegative spondyloarthropathies?

A. PEAR

B. JONES

C. C-MOPS

D. FROM JANE

A. PEAR

74

In the PEAR mnemonic, what does P represent?

A. Polymyalgia rheumatica

B. Psoriatic arthritis

C. Polyarteritis nodosa

D. Pseudogout

B. Psoriatic arthritis

75

In the PEAR mnemonic, what does E represent?

A. Erosive osteoarthritis

B. Erythema nodosum

C. Enteropathic arthritis

D. Eosinophilic fasciitis

C. Enteropathic arthritis

76

Enteropathic arthritis is particularly associated with which disease category?

A. Rheumatoid disease

B. Gout

C. Osteoarthritis

D. Inflammatory bowel disease

D. Inflammatory bowel disease

77

In the PEAR mnemonic, what does A represent?

A. Ankylosing spondylitis

B. Acute rheumatic fever

C. Amyloid arthropathy

D. Autoimmune arthritis

A. Ankylosing spondylitis

78

In the PEAR mnemonic, what does R represent?

A. Rheumatoid arthritis

B. Reactive arthritis

C. Reiterated arthritis

D. Rheumatic arthritis

B. Reactive arthritis

79

How does inflammatory back pain from seronegative spondyloarthropathy typically respond to exercise?

Improves

80

Which ocular manifestation is associated with seronegative spondyloarthropathies?

A. Retinitis

B. Cataracts

C. Glaucoma

D. Uveitis

D. Uveitis

81

Ankylosing spondylitis primarily involves which structures?

A. Spine and sacroiliac joints

B. DIP joints and wrists

C. MCP joints and elbows

D. Shoulders and ankles

A. Spine and sacroiliac joints

82

Which ocular complication is an extra-articular manifestation of ankylosing spondylitis?

A. Conjunctivitis

B. Uveitis

C. Retinal detachment

D. Optic neuritis

B. Uveitis

83

A patient with ankylosing spondylitis develops a new diastolic murmur. Which valvular lesion is classically associated?

A. Mitral stenosis

B. Tricuspid stenosis

C. Aortic regurgitation

D. Pulmonic regurgitation

C. Aortic regurgitation

84

Why can ankylosing spondylitis cause aortic regurgitation?

A. Papillary muscle rupture

B. Infective vegetations

C. Mitral annular calcification

D. Aortitis

D. Aortitis

85

Which triad characterizes reactive arthritis?

A. Conjunctivitis, urethritis, arthritis

B. Uveitis, diarrhea, arthritis

C. Pharyngitis, rash, arthritis

D. Splenomegaly, neutropenia, arthritis

A. Conjunctivitis, urethritis, arthritis

86

A patient develops arthritis, conjunctivitis, and urethritis after an illness. Which diagnosis is most likely?

A. Rheumatoid arthritis

B. Reactive arthritis

C. Osteoarthritis

D. Ankylosing spondylitis

B. Reactive arthritis

87

Which additional gastrointestinal symptom may accompany reactive arthritis?

A. Constipation

B. Hematemesis

C. Diarrhea

D. Jaundice

C. Diarrhea

88

Reactive arthritis classically develops in which demographic?

A. Elderly adults

B. Young adults

C. Neonates

D. Older children

B. Young adults

89

Reactive arthritis classically follows which type of infection?

A. GI or Chlamydia infection

B. Pulmonary or fungal infection

C. Skin or viral infection

D. CNS or parasitic infection

A. GI or Chlamydia infection

90

Which sexually transmitted organism can trigger reactive arthritis?

A. Neisseria gonorrhoeae

B. Treponema pallidum

C. Chlamydia trachomatis

D. Haemophilus ducreyi

C. Chlamydia trachomatis

91

What type of synovial fluid characterizes reactive arthritis?

A. Purulent

B. Septic

C. Hemorrhagic

D. Sterile

D. Sterile

92

A patient has inflammatory arthritis associated with psoriasis and nail lesions. Which diagnosis is most likely?

A. Psoriatic arthritis

B. Reactive arthritis

C. Rheumatoid arthritis

D. Septic arthritis

A. Psoriatic arthritis

93

Septic arthritis results from which underlying process?

A. Crystal deposition

B. Infectious invasion

C. Autoimmune synovitis

D. Cartilage degeneration

B. Infectious invasion

94

What type of organism most commonly causes septic arthritis?

A. Fungal

B. Viral

C. Bacterial

D. Parasitic

C. Bacterial

95

A sexually active young adult develops septic arthritis. Which organism is most likely?

A. Staphylococcus aureus

B. Streptococcus pyogenes

C. Escherichia coli

D. Neisseria gonorrhoeae

D. Neisseria gonorrhoeae

96

What is the typical cause of septic arthritis in older children and adults?

A. Staphylococcus aureus

B. Neisseria gonorrhoeae

C. Streptococcus pneumoniae

D. Enterococcus faecalis

A. Staphylococcus aureus

97

A patient has one acutely red, swollen, painful joint. Which diagnosis should be strongly considered?

A. Osteoarthritis

B. Septic arthritis

C. Rheumatoid arthritis

D. Reactive arthritis

B. Septic arthritis

98

Which joint is most commonly involved in septic arthritis?

A. Shoulder

B. Hip

C. Knee

D. Wrist

C. Knee

99

Purulent synovial fluid with WBCs above 50,000/mm³ suggests what?

A. Osteoarthritis

B. Reactive arthritis

C. Rheumatoid arthritis

D. Septic arthritis

D. Septic arthritis

100

Which triad characterizes gonococcal arthritis-dermatitis syndrome?

A. Polyarthralgia, tenosynovitis, dermatitis

B. Arthritis, urethritis, conjunctivitis

C. Fever, arthritis, hematuria

D. Rash, diarrhea, arthritis

A. Polyarthralgia, tenosynovitis, dermatitis

101

Gout results from deposition of which crystals?

A. Calcium oxalate

B. Monosodium urate

C. Calcium pyrophosphate

D. Cholesterol crystals

B. Monosodium urate

102

Where are monosodium urate crystals especially deposited?

A. Pulmonary alveoli

B. Cardiac valves

C. Joints

D. Biliary ducts

C. Joints

103

What is the most common form of gout?

A. Secondary gout

B. Renal gout

C. Tophaceous gout

D. Primary gout

D. Primary gout

104

Primary gout is characterized by which etiology?

A. Unknown etiology

B. Leukemia

C. Renal insufficiency

D. Lesch-Nyhan syndrome

A. Unknown etiology

105

Why can leukemia cause secondary gout?

A. Reduced inflammation

B. Increased cell turnover

C. Decreased purine synthesis

D. Increased calcium excretion

B. Increased cell turnover

106

Which disorders can cause secondary gout through increased cellular turnover?

A. Osteoarthritis and RA

B. SLE and scleroderma

C. Leukemia and myeloproliferative disorders

D. Psoriasis and eczema

C. Leukemia and myeloproliferative disorders

107

Lesch-Nyhan syndrome predisposes to gout because of impaired ability to do what?

A. Calcium absorption

B. Pyrimidine degradation

C. Uric acid filtration

D. Salvage purine

D. Salvage purine

108

Which glycogen storage disease can cause secondary gout?

A. Von Gierke disease

B. Pompe disease

C. McArdle disease

D. Cori disease

A. Von Gierke disease

109

Renal insufficiency predisposes to gout through what mechanism?

A. Increased purine synthesis

B. Decreased uric acid excretion

C. Increased calcium absorption

D. Reduced neutrophil activation

B. Decreased uric acid excretion

110

Painful acute gout involving the first MTP is called what?

A. Tophus

B. Chondrocalcinosis

C. Synovitis

D. Podagra

D. Podagra

111

Monosodium urate crystal deposition activates which inflammatory cells?

A. Neutrophils

B. Eosinophils

C. Basophils

D. Erythrocytes

A. Neutrophils

112

Why can alcohol consumption precipitate acute gout?

A. Increased calcium absorption

B. Competes for renal excretion

C. Blocks neutrophil migration

D. Decreases purine intake

B. Competes for renal excretion

113

Which foods can precipitate acute gout because of high purine content?

A. Dairy and eggs

B. Fruits and vegetables

C. Red meat and seafood

D. Bread and rice

C. Red meat and seafood

114

Chronic gout produces which characteristic deposits?

A. Pannus

B. Osteophytes

C. Joint mice

D. Tophi

D. Tophi

115

What is a gouty tophus?

A. White chalky urate aggregate

B. Reactive bony outgrowth

C. Inflamed granulation tissue

D. Calcified cartilage fragment

A. White chalky urate aggregate

116

Which location is commonly affected by gouty tophi?

A. Nasal septum

B. External ear

C. Cornea

D. Fingernail

B. External ear

117

Which periarticular structure commonly develops gouty tophi?

A. Prepatellar ligament

B. Rotator cuff

C. Olecranon bursa

D. Meniscus

C. Olecranon bursa

118

Which tendon commonly develops gouty tophi?

A. Patellar tendon

B. Biceps tendon

C. Triceps tendon

D. Achilles tendon

D. Achilles tendon

119

Chronic gout may eventually cause which major complication?

A. Renal failure

B. Liver failure

C. Pulmonary fibrosis

D. Heart failure

A. Renal failure

120

How can chronic gout cause renal failure?

A. Glomerular antibody deposition

B. Tubular urate deposition

C. Renal artery thrombosis

D. Calcium oxalate deposition

B. Tubular urate deposition

121

What shape characterizes monosodium urate crystals?

A. Rhomboid

B. Spherical

C. Needle-shaped

D. Hexagonal

C. Needle-shaped

122

What birefringence characterizes gout crystals?

A. Strongly positive

B. Weakly positive

C. Nonbirefringent

D. Negative

D. Negative

123

Under parallel polarized light, MSU crystals appear what color?

A. Yellow

B. Blue

C. Red

D. Green

A. Yellow

124

Under perpendicular polarized light, MSU crystals appear what color?

A. Yellow

B. Blue

C. Red

D. Green

B. Blue

125

Pseudogout results from deposition of which crystals?

A. Monosodium urate

B. Calcium oxalate

C. Calcium pyrophosphate

D. Cholesterol

C. Calcium pyrophosphate

126

Which condition is associated with pseudogout?

A. Rheumatoid arthritis

B. SLE

C. Osteoarthritis

D. Hemochromatosis

D. Hemochromatosis

127

Which endocrine disorder is associated with pseudogout?

A. Hyperparathyroidism

B. Hyperthyroidism

C. Addison disease

D. Diabetes insipidus

A. Hyperparathyroidism

128

Which joint is most commonly affected by pseudogout?

A. First MTP

B. Knee

C. Wrist

D. Shoulder

B. Knee

129

Which radiographic finding classically suggests pseudogout?

A. Joint mice

B. Osteophytes

C. Chondrocalcinosis

D. Pannus formation

C. Chondrocalcinosis

130

What shape characterizes calcium pyrophosphate crystals?

A. Needle-shaped

B. Hexagonal

C. Spherical

D. Rhomboid-shaped

D. Rhomboid-shaped

131

What birefringence characterizes pseudogout crystals?

A. Weakly positive

B. Strongly negative

C. Nonbirefringent

D. Strongly positive

A. Weakly positive

132

Under parallel polarized light, pseudogout crystals appear what color?

A. Yellow

B. Blue

C. Green

D. Red

B. Blue

133

A benign neoplasm of adipose tissue within a fibrous capsule is called what?

A. Liposarcoma

B. Rhabdomyoma

C. Lipoma

D. Leiomyoma

C. Lipoma

134

What is the most common benign soft-tissue tumor in adults?

A. Rhabdomyoma

B. Fibroma

C. Leiomyoma

D. Lipoma

D. Lipoma

135

A malignant tumor arising from adipose tissue is called what?

A. Liposarcoma

B. Lipoma

C. Rhabdomyosarcoma

D. Leiomyoma

A. Liposarcoma

136

What is the most common malignant soft-tissue tumor in adults?

A. Rhabdomyosarcoma

B. Liposarcoma

C. Leiomyosarcoma

D. Fibrosarcoma

B. Liposarcoma

137

Which cell type is characteristic of liposarcoma?

A. Rhabdomyoblast

B. Myofibroblast

C. Lipoblast

D. Chondroblast

C. Lipoblast

138

A benign tumor of striated muscle is called what?

A. Lipoma

B. Leiomyoma

C. Rhabdomyosarcoma

D. Rhabdomyoma

D. Rhabdomyoma

139

A malignant tumor of skeletal muscle is called what?

A. Rhabdomyosarcoma

B. Rhabdomyoma

C. Leiomyosarcoma

D. Liposarcoma

A. Rhabdomyosarcoma

140

What is the most common malignant soft-tissue tumor in children?

A. Liposarcoma

B. Rhabdomyosarcoma

C. Leiomyosarcoma

D. Fibrosarcoma

B. Rhabdomyosarcoma

141

Which cell type is characteristic of rhabdomyosarcoma?

A. Lipoblast

B. Osteoblast

C. Rhabdomyoblast

D. Chondroblast

C. Rhabdomyoblast

142

Skin picking and lip biting are characteristic behavioral findings in which disorder?

A. Von Gierke disease

B. Gout

C. Pseudogout

D. Lesch-Nyhan syndrome

D. Lesch-Nyhan syndrome

143

Tumors of striated muscle are called what when benign and malignant, respectively?

A. Rhabdomyoma and rhabdomyosarcoma

B. Leiomyoma and leiomyosarcoma

C. Lipoma and liposarcoma

D. Fibroma and fibrosarcoma

A. Rhabdomyoma and rhabdomyosarcoma

144

Which structures are examples of fibrous synarthroses?

A. Pubic and manubriosternal joints

B. Cranial sutures and tooth sockets

C. Knee and hip joints

D. SI and facet joints

B. Cranial sutures and tooth sockets

145

Immobile cartilaginous joints are referred to as what?

A. Synovial joints

B. Synarthroses

C. Syndesmoses

D. Synchondroses

D. Synchondroses

146

Which joints are listed as examples of immobile cartilaginous joints?

A. Manubriosternal and pubic symphyses

B. Hip and knee joints

C. Cranial sutures and teeth

D. Shoulder and elbow joints

A. Manubriosternal and pubic symphyses

147

Which synovial cell type functions as a specialized macrophage with phagocytic activity?

A. Type A synoviocyte

B. Type B synoviocyte

C. Chondrocyte

D. Fibrocyte

A. Type A synoviocyte

148

Which synovial cell type resembles a fibroblast?

A. Type A synoviocyte

B. Type B synoviocyte

C. Osteoclast

D. Macrophage

B. Type B synoviocyte

149

Type B synoviocytes synthesize which important joint lubricant?

A. Uric acid

B. Type I collagen

C. Hyaluronic acid

D. Hydroxyapatite

C. Hyaluronic acid

150

Which structures are absent from hyaline cartilage?

A. Collagen and proteoglycans

B. Chondrocytes and matrix

C. Synovium and cartilage

D. Vessels, lymphatics, and nerves

D. Vessels, lymphatics, and nerves

151

The autoimmune response in rheumatoid arthritis is initiated primarily by which cells?

A. CD4+ helper T cells

B. CD8+ cytotoxic T cells

C. Plasma cells

D. Neutrophils

A. CD4+ helper T cells

152

Activated T cells in rheumatoid arthritis express RANKL. What does RANKL promote?

A. Cartilage lubrication

B. Bone resorption

C. Collagen synthesis

D. Synovial fluid absorption

B. Bone resorption

153

Which cytokine is most firmly implicated in rheumatoid arthritis pathogenesis?

A. IL-4

B. IL-10

C. TNF

D. IFN-beta

C. TNF

154

A patient receives long-term anti-TNF therapy for rheumatoid arthritis. Which infection is particularly concerning?

A. Influenza

B. Rhinovirus

C. Parvovirus B19

D. Mycobacterium tuberculosis

D. Mycobacterium tuberculosis

155

Why should patients receiving long-term anti-TNF therapy be monitored for infection?

A. Opportunistic infections are increased

B. Antibody production becomes excessive

C. Neutrophil activity becomes excessive

D. Complement is overactivated

A. Opportunistic infections are increased

156

Juvenile idiopathic arthritis must begin before what age?

A. 12 years

B. 16 years

C. 18 years

D. 21 years

B. 16 years

157

For juvenile idiopathic arthritis, arthritis must persist for at least how long?

A. Two weeks

B. Four weeks

C. Six weeks

D. Twelve weeks

C. Six weeks

158

Juvenile idiopathic arthritis is best described as what?

A. Single genetic disorder

B. Bacterial joint infection

C. Crystal-induced arthritis

D. Heterogeneous group of disorders

D. Heterogeneous group of disorders

159

Acute suppurative bacterial arthritis usually reaches the joint through which route?

A. Hematogenous spread

B. Direct neural spread

C. Lymphatic obstruction

D. Transplacental spread

A. Hematogenous spread

160

A chronic progressive monoarticular arthritis is caused by Mycobacterium tuberculosis. Which diagnosis best fits?

A. Reactive arthritis

B. Mycobacterial arthritis

C. Rheumatoid arthritis

D. Psoriatic arthritis

B. Mycobacterial arthritis

161

Mycobacterial arthritis usually has which clinical pattern?

A. Acute polyarticular disease

B. Migratory symmetric arthritis

C. Chronic progressive monoarthritis

D. Intermittent axial arthritis

C. Chronic progressive monoarthritis

162

Urate is the final product of which metabolic pathway?

A. Pyrimidine synthesis

B. Heme catabolism

C. Glycogen breakdown

D. Purine catabolism

D. Purine catabolism

163

Ganglion cysts are nearly always found near which structures?

A. Joint capsules or tendon sheaths

B. Long-bone metaphyses or joint capsule

C. Skeletal muscle bellies or joint capsule

D. Subcutaneous adipose tissue or tendon sheaths

A. Joint capsules or tendon sheaths

164

What is the typical maximum size of a ganglion cyst according to these notes?

A. 0.5 cm

B. 1.5 cm

C. 3 cm

D. 5 cm

B. 1.5 cm

165

Which malignant adipose tumor is the most common sarcoma of adulthood?

A. Rhabdomyosarcoma

B. Leiomyosarcoma

C. Liposarcoma

D. Fibrosarcoma

C. Liposarcoma

166

Nodular fasciitis is characterized by proliferation of which cells?

A. Chondrocytes and osteoblasts

B. Adipocytes and lipoblasts

C. Myocytes and rhabdomyoblasts

D. Fibroblasts and myofibroblasts

D. Fibroblasts and myofibroblasts

167

Nodular fasciitis most commonly occurs in which population?

A. Young adults

B. Neonates

C. Elderly adults

D. Pregnant women

A. Young adults

168

How does nodular fasciitis typically behave?

A. Highly metastatic

B. Self-limited

C. Locally destructive

D. Universally recurrent

B. Self-limited

169

In contrast to many other tissue tumors, skeletal muscle neoplasms are predominantly what?

A. Benign

B. Congenital

C. Malignant

D. Inflammatory

C. Malignant

170

Rhabdomyosarcoma is a malignant tumor showing differentiation toward what tissue?

A. Smooth muscle

B. Adipose tissue

C. Fibrous tissue

D. Skeletal muscle

D. Skeletal muscle

171

Rhabdomyosarcoma is classified as which broad tumor type?

A. Mesenchymal tumor

B. Epithelial tumor

C. Neuroendocrine tumor

D. Germ-cell tumor

A. Mesenchymal tumor

172

Leiomyomas are benign tumors derived from which tissue?

A. Skeletal muscle

B. Smooth muscle

C. Adipose tissue

D. Fibrous tissue

B. Smooth muscle

173

Leiomyomas most commonly arise in which organ?

A. Ovary

B. Cervix

C. Uterus

D. Bladder

C. Uterus

174

According to these notes, leiomyomas represent what in women?

A. Most common sarcoma

B. Most common carcinoma

C. Most common ovarian tumor

D. Most common neoplasm

D. Most common neoplasm

175

Hyaline cartilage is composed predominantly of which collagen type?

Type II

176

Approximately 50% of first gout attacks involve which joint?

A. Knee

B. First MTP

C. Wrist

D. Ankle

B. First MTP

177

A first gout attack involving the big toe most commonly affects which articulation?

A. First DIP

B. First CMC

C. First MTP

D. First MCP

C. First MTP

178

A popliteal synovial cyst is more commonly called what?

A. Ganglion cyst

B. Synovial sarcoma

C. Desmoid tumor

D. Baker cyst

D. Baker cyst

179

According to these notes, which tumor typically presents around the knee in approximately 80% of cases?

A. Diffuse tenosynovial giant cell tumor

B. Liposarcoma

C. Rhabdomyosarcoma

D. Leiomyosarcoma

A. Diffuse tenosynovial giant cell tumor

180

What does the term “sarcoma” indicate regarding tumor origin?

A. Epithelial origin

B. Connective/soft-tissue origin

C. Neural origin

D. Hematopoietic origin

B. Connective/soft-tissue origin

181

Dupuytren contracture results from which type of proliferative disorder?

A. Deep fibromatosis

B. Nodular fasciitis

C. Superficial fibromatosis

D. Tenosynovial tumor

C. Superficial fibromatosis

182

Deep fibromatoses are also known by which name?

A. Ganglion cysts

B. Baker cysts

C. Nodular fasciitis

D. Desmoid tumors

D. Desmoid tumors