A pediatric case of unusual melanocytic proliferation of the nail.

Pigmentation of the nail plate, or melanonychia, is typically a benign condition caused by melanocyte activation. Although rare, melanonychia may be the initial presentation of melanoma, thus all cases require an in-depth examination. Evaluation in pediatric patients can prove especially difficult as benign cases have a higher prevalence of atypia compared to adults. Lack of specific treatment guidelines in the pediatric population can make diagnosis and treatment challenging. We report a pediatric patient with melanonychia with atypical features that required significant evaluations and collaboration to ultimately reach a treatment plan.

Resident Rounds: Part III - Case Report: Betel Quid Induced Irritant Contact Dermatitis of the Hand.

Betel quid is a drug used in Far East Asia, India, and the South Pacific. The habit of betel quid chewing is widely reported to cause oral cancer and tooth and gum disease. However, skin disease due to betel quid use is underreported. We report a case of irritant contact dermatitis to betel quid components in a 35-year-old male betel quid user who presented for evaluation of a persistent rash on his fingertips.