askaderm.net

1. OSCE
January 2017
Ameen Al Awadhi
SMC

2. Question1: 30 year old man complaining of a
pruritic rash on both his lower limbs.
• A) what is your diagnosis?
• B) name one syndrome associated with this
disease?

3. Question 2: this patient used to sit for long
hours in front of the house heater
• A) what is the most important
complication
• B) Why do many people get this condition
in the thighs nowadays

4. Question 3: spot diagnosis
• A) what is the cause of this condition?
• B) name one distinctive histological
feature?

5. Question 4
• A) what is the diagnosis?
• B) what is the first feature of the disease?

6. Question 5: 50 year old lady developed an insidious rash involving large
parts of the body, no significant pruritus, no previous history of any
known illness, all blood reports were of normal values
• A) what is the
diagnosis?
• B) name one
pathognomonic
clinical feature?

7. Question 6: what is the diagnosis in this 22
year old lady?

8. Question 7: patient complains of multiple
hypopigmented patches all over trunk and
extremeties. This lesion has been stained with fite
stain
• A) What is the diagnosis?
• B) What do you call these
macrophages?

9. Question 8: patient has come back from a trip to
Africa where he spent weeks exploring caves. He
presented a few days back with oral ulcers.
• A) what is your
diagnosis?
• B) what is the most
common organ
involved?

10. Question 9: patient presented with a painless
papule on leg, no history of pruritus or pain
• A) what is your
diagnosis?
• B) what will you say to
this patient?

11. Question 10: what is the diagnosis?

12. Question 11: what is the diagnosis?

13. Question 12: patient complains of 6 month
dry cough
• A) what is your
diagnosis?
• B) name one antibody
associated with this
patient in particular

14. Question 13: patient is a known case of HIV,
presented with the following lesions on his leg
• A) what is your diagnosis?
• B) what is the treatment?

15. Question 14
• A) what is the diagnosis?
• B) name one useful lab test?

16. Question 15
• A) what is the diagnosis?
• B) what is the best treatment?

17. Question 16
• A) What is the diagnosis?
• B) what syndrome is this lesion
associated with?

18. Question 17
• A) what is the diagnosis?
• B) what is the gene involved?

19. Question 18
• A) what is the name of this
finding?
• B) Name 3 conditions that
present with this finding, one
neoplastic, one infectious, one
depositional

20. Question 19
• List 4 findings (if present) that
would cause you to suspect
melanoma (findings could be
obtained from history or physical
exam)

21. Question 20
• A) What is this sign
called?
• B) name two disorders
that present with this
finding

22. Q21:Name two medications that cause the
clinical features in each case
• A) photo on the left
(2 meds)
• B) photo on the
right (2 meds)

23. Question 22: 18 year old girl presented with a nonpruritic rash,
no history of other illness. Biopsy showed hemosiderin.
• A) what is the
diagnosis?
• B) which cell
predominates in
the inflammatory
infiltrate of this
condition?

24. Question 23: spot diagnosis in two different patients who
presented with solitary nodules
• A) what is your diagnosis? (left)
• B) What is your diagnosis? (right)

25. Question 24: patient also has sparse hair
• A) what is the diagnosis?
• B) what is the name of the lesion on the right?

26. Question 25: 13 year old child
presented with this asymptomatic
lesion
• What is your diagnosis?

27. Question 26: spot diagnosis

28. Question 27: name three situations
where you would see such a clinical
picture

29. Question 28
• A) Diagnosis?
• B) what is the
commonest cause?

30. Question 29
• A) name 4
differential
diagnosis
• B)Name 2
investigations

31. Question 30: write NAME (not type) of
each flap
• A) Left picture
• B) Right picture
• C) lower picture

32. Q31: 17 year old girl, not k/c/o any previous illness,
presented with acute onset rash seven days after taking
a pain killer
• A) what is the diagnosis?
• B) name one histological sign
• C) what is the most common cause of this rash?

33. Q32: 2 week old baby presented with a history of widespread erosions
all over body, excessive granulation tissue in neck area and face
• A) what is the cause of this disease?
• B) what is the prognosis?
• C) name one treatment option for the
excessive granulation tissue?

34. Q33: scattered lesions that are present since birth
• A) diagnosis?
• B)what is the predominant cell in the
histology?
• C) name one risk factor?
• D) what is the treatment?

35. Q34: 48 year old man, presented with a
rapidly growing nodule
• A) what is the diagnosis?
• B) name 2 variants
• C) name 2 risk factors
• D) name one syndrome

36. Q35: spot diagnosis
• A) what is the syndrome?
• B) what is the inheritance
pattern?
• C) what is the name of the lesion
in the left histology image

37. • Diagnosis?
Q36: 56 year old
patient, who is a
chronic smoker,
presented to your
clinic with a 4
week history of
this
asymptomatic
non scaly rash.
The Patient
denies any other
symptoms. You
notice, however,
a good amount of
dark blood in a
tissue that he has

38. Q37: spot diagnosis
• A) name 6 variants
• B) Which type has highest risk of
SCC

39. Q38: 1 week old girl presented with this rash
on both of her lower extremeties
• A) diagnosis?
• B) one histological feature?
• C) one lab finding
• D)one neurological feature

40. Q39: patient is a 12 year old boy who had just run a marathon relay two
days ago and presented with these painful lesions. No history of drug
intake. No fever
• A) what is the diagnosis?
• B) name one differential

41. Q40: newborn presented with the lesions seen
below and cbc showed thrombocytopenia
• A) diagnosis?
• B) what is the most
important investigation?

42. Q41: spot diagnosis
• A) what is the diagnosis?
• B) what is the cause?
• C) name one histological feature

43. Q42: spot diagnosis
• A) diagnosis?
• B) what is the main inflammatory cell
• C) name one associated systemic
disease

44. Q43: spot diagnosis
• A) single most common drug
• B) name one proven systemic
treatment
• C) one ophthalmologic complication

45. Q44: spot diagnosis
• A) what is the diagnosis?
• B) name 4 mechanisms for
the development of this
condition

46. Q45: 70 year old man
• What is the diagnosis?

47. Q46: spot diagnosis
• A) diagnosis?
• B) what is the gene defect?
• C) name 2 investigations

48. Q47: you can use the same answer more than once
• A) name 2 syndromes(above)
• B) name 2 syndromes(below)

49. Q48: 12 year old child presented with these
asymptomatic lesions
• Diagnosis?

50. Q49
• A) diagnosis?
• B) What is the antibody?
• C) name 2 treatment options

51. Q50: spot diagnosis
• A) what is the diagnosis
• B) commonest location?

52. Q51: spot diagnosis
• A) diagnosis?
• B) name one possible cause
• C) name one other dermatological
feature

53. Q52: 50 year old man, presented with a firm nodule on the back
• A) diagnosis?
• B) what is the best treatment
option?

54. Q53: spot diagnosis
• A) what is the most serious
complication?
• B) What is the commonest variant?

55. Q54: 60 year old man, presented with a
pruritic plaque around anus
• A) diagnosis
• B) what would you do for
this patient?

56. Q55: name the type of hair abnormality in each photo
• A) left
• B) middle
• C) right
• D) bottom

57. Q56: spot diagnosis
• A) diagnosis?
• B) what is the defective
gene?

58. Q57: newborn with a firm lesion in the face since birth, no other
medical problems. Normal growth and development
• A) diagnosis?
• B) name 2
differential diagnosis

59. Q58: spot diagnosis
• A) diagnosis?
• B) what is the most important lab
test?
• C) name 2 causes in a
postmenopausal woman

60. Q59: 19 year old patient, not k/c/o any previous illness,
develops eruptive papules all over her face
• A) diagnosis?
• B) treatment?
• C) what does the histology
represent?

61. Q60
• A) what is the scientific name of this
drug?
• B) what is the mechanism of action?
• C) commonest infectious side effect?