Tenosynovial giant cell tumour, also known as pigmented villonodular tenosynovitis, is the second most common soft tissue tumour in the hand, after ganglion cysts. Diffuse form and confined form are the two categories. We report on a 31-year-old female patient who has had a two-year history of Tenosynovial GCT of the left index finger's proximal phalanx. Histopathological and radiographic evaluations are required to assist in deciding whether to pursue additional therapy. The entire tumour was removed during the surgical excision procedure. According to histopathology, these masses were consistent with benign tenosynovial GCT. Six months following surgery, there was no sign of recurrence, both clinically and radiologically.