Extraosseous aneurysmal cyst in hand: a case report.

Background: The presence of primary aneurysmal cyst in soft tissues is a extremely rare and its presence in the soft tissues of hand has never been reported in literature before. We report the first ever case of extraosseous aneurysmal cyst in hand.

Case Presentation: A twelve years old girl presented with a swelling in the thenar region on palmer aspect of right hand growing slowly since three months. On X ray, CT scan and excision biopsy the lesion was found to be separate from bone and located in the soft tissue. Its diagnosis was confirmed on histopatholgical examination.

Conclusion: Previously few authors have reported extraosseous aneurysmal cyst in the soft tissues of shoulder, hip and pelvic girdle but nobody has reported its presence in the soft tissues of hand.