Microvenular hemangioma is an acquired benign vascular tumor that presents as an asymptomatic, slowly growing, 0.5- to 2.0 cm reddish lesion on the forearms or other sites of young to middle-aged adults.
Microvenular hemangioma appears as slow-growing, frequently numerous lesions, erythematous, violaceous, or moderately pruriginous macules, papules, or nodules without any symptoms.
[4] Although the exact cause of microvenular hemangioma is uncertain, it has been found in certain instances during pregnancy or after changes in hormonal contraception.
[7] Multiple distinct red globules are seen under a microscope, and a finely pigmented network is seen around the periphery.
[8] Histologically, microvenular hemangioma is made up of venules with thin walls that branch erratically and have barely noticeable vascular lumina.