[Ectopic meningioma of the tonsil].
To our knowledge this is the first reported case of a primary extracranial meningioma located in the palatine tonsil. Immunohistochemical investigation of the tumour showed coexpression of vimentin and neuron-specific enolase (NSE). No staining was found with antibodies against cytokeratins KL1, 13/10, 8 and 18, epithelial membrane antigen EMA and melanoma protein (HMB-45). It seems justifiable to classify this tumour as an atypical meningioma because of the local increased mitotic activity.
Pathologisches Institut, Allgemeinen Krankenhauses Barmbek, Hamburg.
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Schulz-Bischof
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Donath
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Höpker
D000328:Adult; D014408:Biomarkers, Tumor / Q000032:analysis; D002467:Cell Nucleus / Q000473:pathology; D002828:Choristoma / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008577:Meningeal Neoplasms / Q000473:pathology* / Q000601:surgery; D008578:Meninges; D008579:Meningioma / Q000473:pathology* / Q000601:surgery; D014066:Palatine Tonsil / Q000473:pathology; D014067:Tonsillar Neoplasms / Q000473:pathology* / Q000601:surgery; D014068:Tonsillectomy
D014408:Biomarkers, Tumor
Ektopes Meningeom in der Tonsille.