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

## TL;DR

This paper presents a rare case of multifocal giant cell tumor in the tendon sheath of a little finger, successfully treated with surgery and no recurrence after one year.

## Contribution

The novelty lies in reporting a rare multifocal variant of GCTTS in a specific anatomical location with a successful surgical outcome.

## Key findings

- Multifocal GCTTS was identified in the flexor tendon sheath of the little finger.
- Surgical excision was performed with no recurrence observed after one year.
- The case highlights the distinct nature of multifocal GCTTS from its diffuse counterpart.

## Abstract

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.