Unveiling the Enigma: Uncommon Hand Giant Cell Tumor within the Tendon Sheath

Introduction

Giant cell tumor of tendon sheath (GCTTS), also known as tenosynovial giant cell tumor or pigmented villonodular tenosynovitis, is a rare benign soft-tissue tumor with an unclear cause. It is the second most frequent soft-tissue tumor in the hand after ganglion cyst.

Case Report

We described a female patient, age 19, who has had a 3 cm × 2 cm firm swelling on the palmer aspect of the right second metacarpal region for 7 years. The bulge developed spontaneously and moved quite slowly. It is required to do a histological and radiographic evaluation to determine whether or not to pursue additional treatment. Excision surgery was done, and the tumor was entirely removed. According to histopathology, this mass was compatible with GCTTS without being malignant.

Conclusion

It is an uncommon instance of GCTTS at the hand, to sum up. The tumor should be entirely excised due to its high risk of recurrence to lower the likelihood of recurrence and restore hand function.

Distal Dorsal Thumb Mass: Giant Cell Tumor of the Tendon Sheath in an Unusual Location

Giant cell tumor of the tendon sheath (GCTTS) is a common mass in the digits, hands, and upper extremities. Diagnosis is made on clinical examination, adjunctive imaging, and distinct intraoperative findings. Surgical excision is the mainstay of treatment. GCTTS are typically found on flexor surfaces with the dorsal distal thumb being an unusual location. Any surgical approach to the digit should balance oncologic margins with preserving function. GCTTS have a tendency to recur and should be approached in a methodical manner with risk factors of recurrence in mind. This case report reviews the history of GCTTS, surgical approaches to the digit, and risk factors for recurrence to achieve success in the surgical management of these tumors.