Segmental, partially involuting congenital haemangioma

Abstract

Rapidly involuting congenital haemangiomas (RICH) are typically located in the head/neck or lower extremities and typically solitary. They vary in size up to greater than 10 cm. Several clinical morphologies are described. Typically, involution begins a few days to weeks after birth and is usually complete before 14 months (1).
The process of involution produces often areas of redundant skin with atrophy of dermal or subcutaneous tissues. Findings can also include textural and color abnormalities, telangiectasia, alopecia, superficial scarring, and milia formation. Incomplete involution in some cases of congenital haemangioma may leave findings indistinguishable from PICH (partially involuting congenital hemangioma) and NICH (noninvoluting congenital haemagioma). To the authors knowledge, no case reports of congenital hemangioma highlight presentation as unilateral limb swelling.
In conclusion, the current case of PICH has been described for two exceptional characteristics: segmental distribution and hypertrichosis.