Arthroscopic Excision of Localized Nodular Tenosynovitis of Carpometacarpal Joint of Thumb: A Case Report and Review of Literature.

Giant cell tumors of tendon sheath are classified according to their clinical presentation as localized or diffuse, and they may occur at intra-articular or extra-articular locations. Although magnetic resonance imaging is mandatory and sufficient for diagnosis in many cases, histological examination is needed to confirm the diagnosis. Complete surgical resection is the mainstay of treatment.