Unusual chondroblastoma of the hand with large extraosseous soft tissue component

Radiology Case Reports

Steven W. Thorpe, M.D.¹  Lauren Zeitlinger, D.O.¹  Morgan A. Darrow, M.D.²  Jasjeet Bindra, M.D.³  Justin Choi, B.A.⁴ 

[1] Department of Orthopaedic Surgery, University of California Davis School of Medicine, 4860 Y St. Suite 3800 Sacramento, CA 95817, USA;Department of Pathology and Laboratory Medicine, University of California Davis School of Medicine, 4400 V St. Sacramento, CA 95817, USA;Department of Radiology, University of California Davis School of Medicine, 4860 Y St. Suite 3100 Sacramento, CA 95817, USA;University of California Davis School of Medicine, 4610 X St. Sacramento, CA 95817, USA;

关键词: Chondroblastoma;    Soft tissue;    Hamate;    Magnetic resonance imaging;   

DOI  :  

来源: DOAJ

【 摘 要 】

Chondroblastoma is a rare, benign primary cartilaginous bone tumor that typically arises in the epiphyses of the long bones. Radiologically, a well-defined lytic lesion with thin sclerotic margins is commonly found. The tumor is characterized histologically as an admixture of chondroblasts and multinucleated giant cells with chondroid matrix and pericellular calcifications. We present a case of a chondroblastoma of the hand with an unusual large extraosseous soft tissue component. The mass demonstrated diffuse calcifications and radiolucent lesions in the dorsal aspect of the hamate and metacarpals. Differential diagnoses included synovial chondromatosis, soft tissue chondroma, and tenosynovial giant cell tumor. The patient underwent open biopsy of the mass with plans for excision. Final histopathologic diagnosis was of chondroblastoma of the hamate with a large soft tissue component. A marginal excision of the lesion with curettage and cementation was performed.

【 授权许可】

Unknown