Neurilemoma located at the patellar insertion of vastus medialis obliquus.

We report a case of a rare neurological tumour arising in the knee joint with no apparent connection to the major nerve trunks in the area. After the patient failed to improve through rehabilitation, surgery was performed, revealing a concomitant tear of the medial meniscus as well as a mass which was excised through an external supero-medial incision into the knee. Histopathological analysis later confirmed the diagnosis of a neurilemoma.