when to biopsy?

this was sent from my freind. i know the pic is blurred (mobile pic) he noticed this lesion for 3 weeks not painful no hx of trauma before , it started as such, no previos lesion.
so somone told him that it needs to be biopsied  (it could be cancer)! he was worried . since he s living in [...]

Laser for hair removal and vitiligo risk?

a patient with vitiligo came to asking for hair removal.
she has it on the eyelids and elbos , knees for 5 years. inhte last year it is getting mild relapse.
she is currently on NBUVB
my questions are:
 1-is it contraindicated to use laser here? can patients koebenrise on laser? even if they dont burn?
2- patient already on [...]

woods light for vitiligo? r u doing it

woods light has many applications in dermatology. from common diseases such as fungal infetions to rare diseases (porphria) it has been used for long time.
but the  most common application for it in darker skin tyes is problably in hypo/dpigmented disorders. however me and my fellow dermatologists rarely use it. there is no doupt that it is [...]

whats eating her flesh?

25 years old female who has been having lesion for 4 years. it started on her left arm and nose. it is always painful and and end up in wonds that takes months to heal. her nose was destroyed and she had to have reconstructive surgery. she was on various medication including high dose predinsolone, [...]

beware of the killer!

50 year old female had a dark mole for years. it started to get bigger since 2 years, she went to a private clinic got it exised only to recur after 18 moths. it wasnt sent for biopsy at that time!!we did a biopsy it came melanoma in situ, but that was taken fom th [...]

A Lady with a violaceous lesion

A 30 yrs old lady is complainig of a 1 year history of rach on her face which is asymptomatic. she noticed no relation to sun and wear abayah when going outdoors. her systemic review is negligible and she is on no medication apart from topical steroids which ameliorated her comdition only slightly.
on examination sh