Acta Neuropathologica

, Volume 44, Issue 3, pp 235–239 | Cite as

Choroid plexus papilloma: Light and electron microscopic study of three cases

  • J. J. Navas
  • H. Battifora
Original Works

Summary

Three cases of choroid plexus papilloma were studied by light and electron microscopy. All had the typical papillary pattern, and, in addition, two exhibited solid areas of tumor growth which predominated in one case.

PAS positive (diastase resistant) and argyrophilic cytoplasmic inclusions were present in all three tumors but were particularly abundant in the predominantly solid one. Ultrastructurally, the inclusions appeared as irregularly shaped structures containing lipid droplets, filamentous material and microtubules, and resembled the “silver bodies” of Biondi found in normal choroid plexus.

Along with other ultrastructural features of normal choroid plexus, these cytoplasmic inclusions may be helpful in the differential diagnosis of papillary tumors involving the ventricular system.

Key words

Choroid plexus papilloma Ultrastructure Cytoplasmic Inclusions Silver bodies 

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Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • J. J. Navas
    • 1
  • H. Battifora
    • 1
  1. 1.Department of PathologyNorthwestern University Medical SchoolChicagoUSA

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