Giant Cell Tumor of the Triquetrum: Clinical Case and Literature Review.

Giant cell tumor (GCT) is a benign, locally aggressive neoplasm with little incidence at the carpal bone level. We present a case of pyramidal bone GCT that required open biopsy for diagnosis. As a definitive treatment, en bloc resection of the pyramidal bone and luno-capitate arthrodesis were performed to avoid frequent relapses of these neoplasms and ensure proper functionality of the anatomical segment.

Giant cell reparative granuloma of the phalanx in a violinist.

Giant cell reparative granuloma (GCRG) is a rare, pseudotumoural intraosseous lesion, considered a reactive injury after repeated trauma. Reactive lesions and benign bone tumours may show aggressive clinical and radiographic findings. Differential diagnosis must be performed in order to offer suitable treatment to the patient.

Solitary osteochondroma in the pisiform bone with pisotriquetal osteoarthritis. A case study.

Osteochondroma is the most common bone tumour, which appears most commonly in the long bones. However, cases have been described in the scaphoid, capitate, lunate, trapezium, and trapezoid bones, which can be a cause of pain in the hand and wrist. Osteochondromas can occur concomitantly with other traumatic or degenerative processes or generate complications in adjacent structures.