Purpuric macules in a linear distribution on the left forearm and arm in a 14 year old boy

Abstract

Angioma serpiginosum is a rare, benign vascular nevoid disorder due to ectatic dilatation of capillaries in the papillary dermis. It usually occurs in early childhood, affects females more than males, and is distributed predominantly over lower limbs. We report a case of a 14-year-old boy, who presented with multiple asymptomatic reddish, macules in a linear pattern on the inner aspect of the left upper limb for a total duration of 2 years with dermoscopic and histopathological features suggestive of angioma serpiginosum.

Keywords

• angioma serpiginosum
• dermoscopy
• red lagoons