A Rare Case of Multifocal Giant Cell Tumor of the Right Hand Little Finger Flexor Tendon Sheath.

Giant cell tumor of the tendon sheath (GCTTS) or nodular tenosynovitis arises from a discrete solitary nodule in the tendon sheath of finger joints. Multifocal GCTTS is a rare entity, whereby its etiology is not fully understood and is different from the diffuse type of GCTTS. We report a case of multifocal GCTTS along the tendon sheath of the flexor digitorum profundus of the little finger. Surgical excision was done with no signs of recurrence upon one-year follow-up.