FDE
Fixed drug eruption (FDE) Development of one or more annular or oval erythematous patches
As a result of systemic exposure to a drug
Normally resolve with hyperpigmentation
May recur at the same site with reexposure to the drug+
Repeated exposure to the offending drug may cause new lesions to develop in addition to "lighting up" the older hyperpigmented lesions
Varieties
Pigmented
Generalized or multiple
Linear
Wandering
Nonpigmenting
Bullous
Eczematous
Urticarial
Erythema dyschromicum perstans–like
Vulvitis
Oral
Psoriasiform
Cellulitis like eruption +
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25 yr F
Multiple well-marginated lesions all over the body
Itchy hyperpigmented
Rough surface
>3 months duration
Tt at multiple health care centers
Photograph of upper back
Dx ?
Tinea corporis
Superficial fungal (dermatophyte) infection of keratinized tissues including skin, hair, and nails
Dermatophyte sp included in 3 genera (Epidermophyton, Microsporum & Trichophyton)
further divided according to 3 natural habitats (humans, animals &soil)+
Trichophyton rubrum is the most common cause of dermatophytosis of the skin
Although any part of the body may be affected, most common in buttocks thighs underarms inframammary area
Heat sweating friction from tight clothes exacerbate symptoms
Itchy & scaly +