Aquagenic papulotranslucent acrokeratoderma isa rare condition with the development of white-totransluscentpapules and plaques after exposureto water. While the first report was described asan autosomal dominant hereditary condition,there have since been acquired cases reported inassociation with cystic fibrosis, with prior exposureto a drug, or as an idiopathic condition. We presenta 24-year-old man with acquired aquagenicpapulotranslucent acrokeratoderma that has beenpresent since infancy, without a family history,without prior drug exposure, and without anypersonal or family history of cystic fibrosis. Thus fartreatment with urea cream, calipotriene ointment,vitamin E cream, and clobetasol ointment hasbeen ineffective. Our patient will be treated withbotulinum toxin.

We present a 38-year-old woman with local heat urticaria confirmed by heat provocation testing. Heat urticaria is a rare form of physical urticaria that istriggered by exposure to a heat source, such as hot water or sunlight. Although it is commonly localized and immediate, generalized and delayed onset forms exist. Treatment options include antihistamines and heat desensitization. A brisk, mechanical stroke elicited a linear wheal. Five minutes after exposure to hot water, she developed well-demarcated,erythematous blanching wheals that covered the distal forearm and entire hand.

The association between multiple pilomatricomasand the autosomal dominant neurodegenerativedisorder myotonic dystrophy has been described inthe literature. Although the mechanism is unknown,it is hypothesized that the dystrophia myotonicaprotein kinase mutation in myotonic dystrophyaffects intracellular calcium levels, which alterproliferation and terminal differentiation that leads tocells that are observed in pilomatricomas. We presenta patient with multiple, symptomatic pilomatricomasand myotonic dystrophy, with a strong family historyof both of these rare disorders.