Schwannoma of Bone

Fig. 43.1

Schwannoma of mandible. Panoramic radiograph showing a large lytic lesion at left

Fig. 43.2

Periosteal schwannoma of femur. (a) Radiograph shows a translucent external indentation in the cortical metaphysis at left. (b) CT scan shows a lucent periosteal nodule producing a well-delimited depression in the subjacent cortex

Fig. 43.3

Medium-power microscopic view of a schwannoma with more crowded spindle cell areas (Antoni A) and a looser central area (Antoni B)

Fig. 43.4

Medium-power microscopic view. Suggestive palisading of the nuclei of the spindle cells, at left, and large congestive blood vessels with thick hyaline walls

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