Secondary Chondrosarcoma Arising in Synovial Chondromatosis of Wrist Joint.

INTRODUCTION: Chondrosarcoma of the synovium is a rare and malignant form of cartilaginous tumor that originates in synovial tissue. There have only been a limited number of reported cases of malignant transformation of synovial chondromatosis (SC) into secondary chondrosarcoma (SCH), primarily in the hip and knee, in patients with resistant illness. The occurrence of chondrosarcoma in SC of the wrist is highly uncommon, as evidenced by only a single previous case study that has been documented in the literature.

CASE REPORT: This study presents a case series of two patients with primary SC who developed SCH at the wrist joint.

CONCLUSION: Clinicians treating localized swellings of the hand and wrist should be alert to the likelihood of a sarcoma diagnosis to minimize delays to definitive therapy.