A Rash of Rough Spinous Patches on a Young GirlJuly 25th 2014
The rash has been present for 2 years. Originally on the trunk and extremities it has now spread to her face and hands. She has been diagnosed as having and been unsuccessfully treated for nummular eczema and tinea corporis. What's your Dx?
Lichen Spinulosus in a Young GirlJuly 24th 2014
Lichen spinulosus is a rare, hyperkeratotic dermatosis similar to keratosis pilaris. It is most common in children, adolescents, young adults with male predominance. Treatment includes keratolytics and emollients.
Ecchymoses and Erosion on Fragile SkinSeptember 18th 2013
These wounds occurred when this 77-year-old woman fell when chasing her dog. Such wounds-a combination of ecchymoses and erosion caused by blunt and sheering forces on fragile skin-are common in the elderly, even after relatively mild trauma. Simple interventions will promote healing.
Actinic Keratosis in a 60-Year-Old WomanSeptember 5th 2013
The differential diagnostic possibilities for this tender nodule included hypertrophic actinic keratosis, keratoacanthoma, squamous cell carcinoma, and verruca. The possibility of squamous cell carcinoma dictated removal with histologic examination.
This is a prototypical case of acute contact dermatitis to benzoyl peroxide that the patient had been applying for her mild to moderate papulo-pustular acne. Twice-daily application of hydrocortisone 2.5% cream led to prompt resolution of the rash.
Subungual Hematoma From Dog BiteJuly 16th 2013
After a dog bite, trauma in the form of a subungual hematoma and shallow lacerations prompted a 10-day course of amoxicillin-clavulanate. This antibiotic is also useful for cat and human bites that appear to be at high risk of becoming infected.