<unk>  (EAH), first described by Lotzbeck in 1859, is a rare benign vascular hamartoma characterized histologically by a proliferation of<unk>  and vascular components. EAH exists on a spectrum of cutaneous tumors that include<unk>  nevus, mucinous<unk>  nevus and EAH. Each diagnostic subtype is characterized by an increase in the number as well as size of mature<unk>  glands or ducts, with EAH being distinguished by the added vascular component. Patients with EAH may present with complaints of pain or increased sweating (hyperhidrosis) associated with stress or exercise, or without any associated symptoms. It usually appears as a solitary nodular lesion on the acral areas of the extremities, particularly the palms and soles. Onset of EAH most commonly arises in children prior to puberty as a solitary, unilateral, large, red to violaceous nodule or plaque located on the extremities. Although rare, there have been reports of multiple EAH lesions occurring within a single patient in a linear, grouped, agminated or blaschkoid distribution.
Eccrine angiomatous hamartoma
Folliculosebaceous cystic hamartoma
Basaloid follicular hamartoma
Littoral cell angioma
Neural fibrolipoma
Aggressive angiomyxoma
Malignant acrospiroma
Keratin implantation cyst