Bilateral lunate intraosseous ganglia.

An intraosseous ganglion is a relatively uncommon, benign cystic lesion that occurs in young and middle-aged adults. Bilateral and symmetrical lesions of the wrist are rare. Intraosseous ganglia of the carpal bones are uncommon causes of chronic wrist pain. Isolated cases of intraosseous ganglion have been reported most commonly in the lunate and scaphoid. The lunate was most frequently affected, followed by the capitate, scaphoid, and triquetrum bones. Radiolucent lesions in the carpal bones are not uncommon and are often seen incidentally in asymptomatic patients. The differential diagnosis of a lytic lesion in a carpal bone includes unicameral bone cyst, degenerative cyst, fibrous developmental defect, osteomyelitis, and intraosseous ganglion cyst. This article describes a case of bilateral lunate intraosseous ganglia. A review of the literature revealed that bilateral and symmetrical intraosseous ganglia of the wrist are rare, with only 3 other reported cases of bilateral lunate lesions. Copyright 2010, SLACK Incorporated.