Pineoblastoma: an electron microscopic study.

Abstract:

:The ultrastructure of a human pineoblastoma is described. Tumor cells formed nests, palisading row and rosettes. Cells within nests were undifferentiated. Palisade and rosette forming cells had polarized cytoplasms and showed signs of differentiation and surface membrane specialization which included surface end-bulb-like protrusions of the cytoplasm, bulbous cilia with a 9 + 0 microtubular skeleton, and blunted microvilli. In the cytoplasm of tumor cells there were characteristic granular bodies, whorls of smooth endoplasmic reticulum and annulate lamellae. Some of these findings appear to be unique to pineal tumor and are reminiscent of photoreceptor cells in the pineal glands of lower vertebrates and human fetal pineal glands.

journal_name

Cancer

journal_title

Cancer

authors

Kline KT,Damjanov I,Katz SM,Schmidek H

doi

10.1002/1097-0142(197911)44:5<1692::aid-cncr282044

subject

Has Abstract

pub_date

1979-11-01 00:00:00

pages

1692-9

issue

5

eissn

0008-543X

issn

1097-0142

journal_volume

44

pub_type

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