Derm/MSK

Question 1

“Stuck-on” appearance

Answer 1

seborrheic keratosis

Question 2

Red plaques with silvery-white scales and sharp margins

Answer 2

psoriasis

Question 3

Most common type of skin cancer; lesion is a pearly-coloured papule w/ a translucent surface and telangiectasias

Answer 3

Basal cell carcinoma

Question 4

Honey-crusted lesions

Answer 4

impetigo

Question 5

A febrile Pt w/ h/o DM presents w/ red, swollen, painful lower extremity

Answer 5

Cellulitis

Question 6

Pos Nikosky’s sign

Answer 6

Pemphigous vulgaris

Question 7

Dirty, velvety patches on back of neck

Answer 7

Acanthosis nigricans; check fasting blood glucose to rule out DM

Question 8

Dermatomal distribution

Answer 8

Varicella zoster

Question 9

Flat-topped papules

Answer 9

lichen planus

Question 10

It is-like target lesions

Answer 10

erythema multiforem

Question 11

Presents w/ a herald patch, christmas-tree pattern

Answer 11

pityriasis rosea

Question 12

pinkish, scaling, flat lesions on the chest and back; KOH prep has a “spaghetti-and-meatballs” appearance

Answer 12

Tine versicolor

Question 13

4 characteristics of a nexus suggestive of melanoma

Answer 13

asymmetry, border irregularity, color variation, large diameter

Question 14

Premalignant lesion from sun exposure that channeled to SCC

Answer 14

Actinic keratosis

Question 15

“dewdrops on a rose petal”

Answer 15

Lesions of primary varicella

Question 16

“cradle cap”

Answer 16

seborrheic dermatitis; treat conservatively w/ bathing and moisturizing agents

Question 17

Ass. w/ Propionibacterium acnes and changes in androgen levels

Answer 17

Acne vulgaris

Question 18

Painful, recurrent vesicular eruption of mucocutaneous surfaces

Answer 18

Herpes simplex

Question 19

Inflammation and epithelial thinning of the anogenital area, predominantly in postmenopausal women

Answer 19

Liche sclerosus

Question 20

Exophytic nodules on the skin w/ varian degrees of scaling or ulceration; the second most common type of skin cancer

Answer 20

Squamous cell carcinoma

Question 21

Back pain exacerbated by standing and walking and relieved w/ sitting and hyper flexion of hips

Answer 21

spinal stenosis

Question 22

Joints in hand affected in RA

Answer 22

MCP and PIP; DIPJs are spared

Question 23

Joint pain/stiffness that worsen over the course of the day and relieved by rest

Answer 23

Osteoarthritis

Question 24

Genetic DO associated w/ multiple fractures and blue sclerae, commonly mistaken for child abuse

Answer 24

Osteogenesis Imperfecta

Question 25

Hip & back pain along w/ stiffness that improves w/ activity over the course of the day and worsen at rest. Diagnostic test?

Answer 25

Suspect ankylosing spondylitis. Check HLA-B27

Question 26

Arthritis, conjunctivitis, and urethritis in young men. Associated organisms?

Answer 26

Reactive (Reiter's) arthritis. Most commonly ass. w. Chlamydia. Also consider campylobacter, shigella, salmonella, and ureaplasma.

Question 27

55yo M has sudden, excrutiating first MTP joint pain after a night of drinking red wine. Dx, workup, and chronic Tx?

Answer 27

Gout. Needle-shaped, negatively birefringent crystals are seen on joint fluid aspirate. Chronic treatment w/ allopurinol or probenecid.

Question 28

Rhonboid-shaped, positively birefringent crystals on joint fluid aspirate

Answer 28

Pseudogout

Question 29

Elderly F presents with pain/stiffness of shoulder and hips; she cannot lift her arms above her head. Labs show anemia and elevated ESR.

Answer 29

Polymyalgia rheumatica

Question 30

Active 13yo M has anterior knee pain

Answer 30

Osgood-schlatter disease

Question 31

Bone fx in a fall on an outstretched hand

Answer 31

Distal radius (Colles' fracture)

Question 32

Complication of scaphoid fx

Answer 32

Avascular necrosis

Question 33

Signs suggesting radial nerve damage w/ humeral fracture

Answer 33

wrist drop, loss of thumb abduction

Question 34

Young child presents w/ proximal muscle weakness, waddling gait, and pronounced calf muscles

Answer 34

Duchenne muscular dystophy

Question 35

First-born female who was born in breech position is found to have asymmetric skin fold on newborn exam. Dx? Tx?

Answer 35

Developmental dysplasia of the hip. If sever, consider a Pavlik harness to maintain abduction

Question 36

11yo AAM presents w/ sudden onset of limp. Dx? Workup?

Answer 36

Slipped capital femoral epiphysis. AP and frog-leg lateral x-rays

Question 37

Most common primary malignant tumor of bone

Answer 37

Multiple myeloma