Summary
An unique ependymoma of the filum terminale with intracytoplasmic secretory granules has been identified by light and electron microscopy. A striking structural and histochemical similarity exists between the tumor secretory product and that found in the secretory system present in the terminal portion of the spinal cord of the fish. The function and site of action of the secretory product is unknown.
Zusammenfassung
Ein unikales Ependymom des Filum terminale mit intracytoplas-matischen Sekretgranula wurde licht- und elektronenmikroskopisch nachgewiesen. Auffallende strukturelle und histochemische Änlichkeiten bestehen zwischen den Sekretionsprodukten des Tumors und denen im sekretorischen System des Endabschnittes des Rückenmarks bei Fischen. Die Funktion und der Wirkungsort des Sekretionsproduktes sind unbekannt.
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This work was supported by Grants # NB08549 and 5T1-GM-897 from the National Institutes of Health, Bethesda, Md.
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Miller, C.A., Torack, R.M. Secretory ependymoma of the filum terminale. Acta Neuropathol 15, 240–250 (1970). https://doi.org/10.1007/BF00686770
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DOI: https://doi.org/10.1007/BF00686770