familial angiolipomatosis
Familial angiolipomatosis is a rare, genetic, subcutaneous tissue disorder characterized by the presence of benign, usually multiple, subcutaneous tumors composed of adipose tissue and blood vessels, typically manifesting as yellow, firm, circumscribed, 1-4 cm in diameter tumors located in the arms, legs and trunk, with deep extension of the lesions between muscles, tendons and joint capsules (without infiltration of these structures), in several members of a single family. Tumors may be tender or mildly painful when palpated and do not regress spontaneously.