Aneurysmal bone cyst of the hand.
Diagnosis of aneurysmal bone cyst in the hands is confused by rarity (2%) and overlapping characteristics of other lesions, especially benign osteoblastoma and giant-cell tumor. Pseudosinusoidal vascular channels create interfaces between liquid blood (maintained by fibrolysin) and connective tissue cells. The role of trauma is inexplicable.
D001845:Bone Cysts / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006225:Hand / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D011859:Radiography