Abstract
Hoffa's fat pad can be affected by a variety of tumors. Schwannomas are benign and
typically solitary neoplasms of the peripheral nerve sheath; they are made up of the
neoplastic Schwann cells and are usually located eccentrically. Malignant schwannomas
are extremely uncommon. Here we report a case of an intra-articular schwannoma of
the knee. A 54-year-old man presented with a painful lump in the medial aspect of
the knee. Magnetic resonance imaging revealed a well-circumscribed intra-articular
mass, which was later diagnosed as an intra-articular schwannoma based on biopsy findings.
Keywords
schwannoma - intra-articular tumor - knee joint schwannoma
