Congenital erythematous plaques and papules on the right arm. Eccrine angiomatous hamartoma

Facial eccrine angiomatous hamartoma in a 52-year-old woman: A case report

Eccrine angiomatous hamartoma is a rare, benign condition. Patients typically present with a solitary, sometimes enlarging nodule of the extremities usually appearing at birth or arising during childhood. Eccrine angiomatous hamartoma is usually sporadic, but one familial case of the multifocal variant has been reported. It is recognized histologically by increased numbers of eccrine elements as well as numerous vascular channels and proliferation of other dermal elements such as adipose tissue and hair follicles. When symptomatic, eccrine angiomatous hamartoma may be associated with hyperhidrosis or pain. We report a case of a 52-year-old woman with eccrine angiomatous hamartoma on the face and share our experience with botulinum toxins in the treatment of this condition.

Congenital eccrine angiomatous hamartoma: Expanding the morphologic presentation and a review of the literature

Eccrine angiomatous hamartoma (EAH) is a rare benign vascular hamartoma characterized histologically by an increased size and number of mature eccrine glands associated with multiple foci of dilated capillaries in the dermis and subcutis. EAH typically presents in children as discrete, solitary nodules, or plaques most commonly located on the extremities. Some cases of EAH have an agminated distribution involving classic locations, or present as solitary lesions in less common locations such as the face, scalp, or trunk. We report the case of congenital EAH in a child with atypical morphological features and pattern of distribution further expanding on the range of presentations classically described.