Scaphoid avascular necrosis
Osteonecrosis
• Preiser disease - Ganzer Fall bei Radiopaedia
Preiser
disease in a child before complete ossification of the scaphoid: a case report. Radiologic image findings at the initial visit. Plain radiography showed osteosclerosis (a) and CT revealed segmentation of left scaphoid bone (b). Both MRI T1- and MRI T2-weighted images showed low intensity on the whole scaphoid bone, which meant osteonecrosis (c, d)
Preiser
disease in a child before complete ossification of the scaphoid: a case report. Temporal changes in MRI T1-weighted images. At 1 year after the initial visit, scaphoid bone still showed low intensity (a), though partial recovery of intensity change was observed only in the distal pole (b). At 2 years after the initial visit, normal intensity on the whole scaphoid bone was observed (c)
Preiser disease refers to idiopathic osteonecrosis of the scaphoid .
Classification
- type 1: complete type, associated with poor outcome
- type 2: partial/segmental type, associated with good outcome when compared to type 1
History and etymology
It was first described by G Preiser in 1910 .
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu avaskuläre Nekrose des Os scaphoideum:
