Abstract
Angiolipoma is a histological variant of the more common lipoma that may occur superficially throughout the body. After review of recent literature, different cases of angiolipomas were reported within various areas, more so in the upper extremity and truncal regions.
Highlights
Angiolipoma is an uncommon, benign tumor involving mainly subcutaneous tissues of mainly younger patients in their twenties or thirties [1,2]
Our clinical case demonstrates an extremely rare presentation of a non-infiltrating angiolipoma lesion growing within a hamstrings autograft after anterior cruciate ligament (ACL) reconstruction
There have been a few prior reports of lower extremity intraarticular angiolipomas inside the knee, but to the best of our knowledge, none have been identified within an ACL hamstrings autograft. This clinical case is of particular interest to orthopaedic surgeons and sports medicine specialists as a potential differential diagnosis for knee joint pain and disability without an obvious source
Summary
Angiolipoma is an uncommon, benign tumor involving mainly subcutaneous tissues of mainly younger patients in their twenties or thirties [1,2]. This histological variant of the more commonly encountered lipoma makes up 5-17% of all lipomas [1,2,3]. The etiology of angiolipoma is a matter of debate, though post-pubertal hormonal influence and repetitive microtrauma have been theorized to play a role in its origin [1,2] These subcutaneous masses can occur anywhere on the body but are most often found on the neck, trunk, and extremities, with up to two-thirds occurring on the forearm. The purpose of this paper is to discuss our unique clinical case along with review of the literature about angiolipoma
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