Intraosseous ganglia of carpal bones

25 patients with 26 intraosseous ganglia in carpal bones are described, 14 in the scaphoid and 12 in the lunate. In most cases, attention was drawn to the lesion when X-rays were performed after a recent injury to the wrist. Typically, they occurred eccentrically and were surrounded by a radio-dense rim of bone. In a few cases the cortex was breached but never expanded by the lesion. Curettage and bone grafting were performed only if symptoms persisted and no other source for the pain could be found. Most contained the typical jelly-like material also found in soft tissue ganglia and the histology showed an identical structure. A suggested format for the management of these lesions is presented.