Cherry angioma

Cherry angioma is a common skin condition characterized by small, bright red spots that appear on the skin. These spots are caused by clusters of tiny blood vessels near the surface of the skin. They usually develop on the trunk, arms, and legs and tend to increase in number with age. The condition involves the vascular system and primarily affects the skin's appearance without causing pain or serious health problems. Most people notice these spots as harmless and stable, although they may bleed if injured. Cherry angiomas do not typically affect overall health or require treatment unless for cosmetic reasons.

Cherry angioma is a benign vascular lesion consisting of dilated capillaries and postcapillary venules in the papillary dermis. It results from a localized proliferation of capillary endothelial cells, leading to the formation of small, bright red to purple papules. The exact cause is unknown but is associated with aging, genetic factors, and possibly exposure to certain chemicals. These lesions are typically asymptomatic and present as multiple, well-demarcated, dome-shaped papules ranging from 1 to 5 mm in diameter. They are clinically significant mainly due to their appearance and potential for minor bleeding if traumatized. Histologically, they show clusters of thin-walled vascular channels lined by a single layer of endothelial cells. Cherry angiomas are distinct from other vascular lesions such as hemangiomas or pyogenic granulomas by their size, distribution, and histopathology.