Tumors and tumor-like lesions of infrapatellar fat pad and surrounding tissues: A review of the literature.

The infrapatellar fat pad (IFP) is an intracapsular structure with critical importance both mechanically and endocrinologically. Its dysfunction must be considered while clinically investigating the symptoms arising from the knee joint. Infrapatellar fat pad may be subject to trauma, impingement, inflammation or tumoral formations. Although tumors arising within or adjacent to IFP are not extremely rare, the literature can only provide limited information about them. This article aims to briefly review the current literature on tumors and tumor-like lesions of the IFP and surrounding tissues; focusing on diagnosis and treatment management.