fish vertebrae

fish vertebrae

Radiology A descriptor for biconcave, fish-like vertebrae, caused by infarction and central bone collapse due to thrombosis of the vertebral arteries, a finding typical of sickle cell anemia, which often occurs before the 2^nd decade; peripheral perforating metaphyseal arteries are relatively spared, explaining lesser involvement of the anterior and posterior faces of the vertebrum DiffDx FV may also be seen in hereditary spherocytosis, homocystinuria, Gaucher's disease, osteoporosis, osteopenia, renal osteodystrophy or hyperparathyroidism, osteomalacia, thalassemia major, blood dyscrasia