2011 Derm Exam :1.b2.c3.b4.4
5.d
6.Pustular psoriasis
7.Genital warts
8.b
9.The interleukins produced by keratinocytes are these : IL 1,3,6,,,8,10,12.( NOT IL 2,4)
10.Most common bullous disease : pemphigus vulgaris.
11.wrong q
12.all are correct except e
13.a
14.b
15.b
16.a
17.d
18. adult mite is barely seen 0.3-0.4mm, (wrong a), b is correct but it's 2-3 eggs.
19.Incomplete question but in general :
Tinea corporis : days-weeks, itchy, unilateral, expanding scale with central clearing.
Pityriasis rosea : 2-10 weeks, asymptomatic or itchy, mother plaque then few days the rest of the oval plaques, well defined.
Psoriasis : years, well defined, symmetrical, salmon coloured plaques, silver scales.
Lichen planus : 1-2 years, symmetrical, purple flat topped papules, wickham's stria, well defined, volar wrists and feet, very itchy, leaves brown patches after healing.
pitryasis versicolour: few weeks-months, asymp or slightly itchy, fine scales, relatively well defined or well defined.
20.wrong question. In general know this:
type I (immediate): urticaria, angioedema.
type II (humeral): autoimmune diseases like bullous pemphigoid and pemphigus vulgaris.
type III (immune complex mediated): vasculitis.
type IV (delayed) : allergic contact eczema, granulomas.
...about irritant contact eczema, it's not immune mediated, it's external irritation, so it's excluded from this classification.. and atopic eczema isn't classified here either.
21.a
22.a
23.Erythroderma.
24.Here they are talking about erythema nodosum indirectly, most coomon cause is strep.
25.a
26.Topical imidazole.
27.a
28.e
29.c
30.a
31.I think they mean 50 year old, b
32. Stem cells are found in 3 places : bulge of hair, basal layer, outer root sheath of hair; have ability to differentiate, have unlimited capacity to renew themselves.
33.zinc oxide
34.b
35.c (here they mean seborrheic eczema treatment)
36.b
37.b
38.d
39.b
40.b
41.b
42. can cause all, incomplete question
43. question is wrong. nail changes in these diseases :
Psoriasis : (5) : thimble pitting, oil spots, splinter hemorrhage, subungual hyperkeratosis, onycholysis.
Lichen planus : most common (nail thinning), most specific (pterygium), longitudinal ridging.
Chronic paronychia : loss of cuticle, crumbling, yellow discoloration, subungual hyperkeratosis,ridging, tender swollen nail folds.
44.d
45.a
46.b
47.b
48.a
49.a
50.a
51.a
52.a
53. 50 year old male, addison
54. ma3yood
55.incomplete answers
56.b
57.b
58. here they mean benefit from sun exposure (a)
59.d
60.b
61.b
62.b
63.c
64.c
65.d
66.c
67.a
68.c
69.c
70. here they mean erythema nodosum, (c) management is bed rest, leg elevation, analgesia.
71.a
72.something not right about the question, (b) if the q wasn't wrong.
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Derm 2010 exam:
1.eczema
2.herpes simplex (eczema herpeticum)
3.KOH and microscopy
4. as i mentioned in the previous exam, here type IV is photosensitivity. bas zabto the other answers (pemphigus-type II)(irritant contact eczema-none)(vasculitis-type III)(urticaria-type I)
5.it affects males and females.
6.lichenification.
7.eysipleas
8. hon 7elo tefhamo el so2al 3shan law t3'ayyar el scenario, in general erythema nodosum management is these 3 : bed rest, leg elevation, and analgesia(NSAIDS), but if there was evidence of infection (most commonly strep proved by aso titre and throat swab) u can also give ABx as treatment but only if it hinted infection in the question, other things we can do as approach is CXR for TB and sarcoidosis, so other answers can be excluded. answer is u don't need to give iv ABx.
9. salicylic acid (could be called keratolytics or wart paint) given first line for 3 months then cryotherapy after that in common warts.
10.pitryasis versicolour.
11.it's unilateral.
12.something missing about this question, but lichen planus affects genitals.
13.body lice.
14.tinea pedis
15.second choice is wrong.
16.tinea capitis.
17.should have the option 'burrows' as first choice, if it's not there, then rubbery genital nodules.
18.antihistamine only.
19.pitryasis versicolour.
20.pitryasis rosea (2-10 weeks)
21.wrong one is the site (prediliction for flexures) the basement membrane is right.
22.obstruction.
23.wrong question, answer should be oral isotretinoin then laser.
24.correct.
25.neomycin
26.fixed erythma (rosacea)
27.correct, doxycyline in contrast to other members of the tetracyclines is safe in renal disease.
28.the question is wrong. these are the modalities used in vitiligo treatmet (topical steroid, topical calcineurin inhibitors, phototherapy or PUVA, stem cell transplant or recell, and sun protection)
29.addisons
30.stop lactating is incorrect.
31.correct.
32.here we discussed. since he obviously had an infection but took an abx, best thing to do is give nsaids.
33.TB (most common is strep, other causes are TB, sarcoidosis, pregnancy, mycoplasma, drugs, IBD, behcet)
34.correct (henoch-schonlein purpura)
35.correct
36.azathioprine doesn't cause pulmonary fibrosis.
37.correct.
skipped 38
39.it's actually langerhans cells. if it wasn't in the options, then choose keratinocytes.
40.correct
41.prickle layer. (odland/lamellar bodies are in the prickle/spinous layer, different names for the same thing..... and the keratohyaline Granules in the Granular layer)
42.correct
43.correct
44.correct
45.alopecia areata
46.correct
47.correct
48.correct
49.correct
50.correct, it's intraepidermal
51.androgens in males and females
52.presence of exclamation mark hair
53.correct
54.correct
55.correct
56.correct
57.correct
58.correct
59.that option is first line treatment, question is wrong.
60.correct
61.correct
62.correct
63.correct
64.correct
65.correct
66.correct
67.correct (pityrasis rosea)
68.fixed erythema
69.correct
70.correct
71. it's a correct match but misspelt (balsam of peru-scents)
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