Derm round 5

Case 1

A 15 years old lady with port wine stain lesions over her left upper arm was treated in the Plastic surgery clinic with laser.

She was referred to the dermatology clinic for further management of the above lesions over the right upper arm which were present since childhood (>10 years). The patient is asymptomatic.

Diagnosis?
By one look, this is Keratosis pilaris.
(On further questioning, similar lesions were present over her thigh).

More:
eMedicine
KeratosisPilaris.org
AOCD
DermNet NZ


Case 2

65 years old man was recently diagnosed to have SVT and hypertension two months ago presented with the above pruritic body rashes of 2 weeks duration. He was prescribed aspirin, metoprolol, amiodarone and perindopril.

Clinically, he had generalized erythrodermic skin which was thickened, dry and scaly with areas of scratch marks as well as excoriation, sparing the buttock and upper thigh.

Diagnosis?
Drug-induced photodermatitis.

Which drug is the most likely cause?
Amiodarone.
(Further history, patient admitted having exposed under sunlight regularly without shirt on during gardening)

More:
DermNet NZ
University of Maryland Medical Center