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Published on: February 18, 2014
Ultrastructural study of a perineurioma with ribosome-lamella complexes
P Dhimes1, M A Martinez-Gonzalez, E Carabias
1Departamento de Anatomía Patológica, Universidad Complutense de Madrid, Spain.
Abstract:
The participation of the perineurial cell in peripheral nerve tumors is the subject of much debate. The case of a 75-year-old female with a soft tissue tumor on her left shoulder is presented. The tumor had histological, ultrastructural, and immunohistochemical characteristics of a pure perineurial cell neoplasm. Ultrastructurally, distinctive ribosome-lamella complexes were found in the cytoplasm of the perineurial cells. This may be the first time that these structures have been described in perineurioma.
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