Muir-torre syndrome: a case report.

Muir-Torre syndrome is an autosomal dominant genodermatosis associated with sebaceous neoplasms and visceral malignancies. Characteristic sebaceous neoplasms include sebaceous adenoma, sebaceous carcinoma, sebaceoma, and keratoacanthoma with sebaceous differentiation. The most common visceral malignancies are colorectal and genitourinary tumors.

Contact dermatitis from a presumed allergy to paraphenylenediamine.

Paraphenylenediamine (PPD) is a potent skin allergen found in permanent hair dye and temporary henna tattoo ink. Several cases of adverse skin reactions to PPD have been reported in the literature. Here we present a case involving a patient who acquired a temporary tattoo while vacationing in Mexico and subsequently developed contact dermatitis at the tattoo site.