"PIK3CA-related overgrowth spectrum (PROS) is a broad group of segmental overgrowth disorders that can occur with or without associated vascular anomalies, caused by activating mutations in the PIK3CA gene, which are also responsible for the vast majority of isolated lymphatic malformations and some isolated venous malformations 1."
"PROS disorders include 1:"
"Some authors also consider fibroadipose vascular anomaly (FAVA) as being a PROS disorder 2."