Ultrastructure of pineal parenchymal neoplasms.

Abstract:

:The fine structures of two pineal parenchymal neoplasms has been described. The tumors contained a predominance of small, poorly differentiated cells with prominent nuclei and scanty cytoplasm. These cells were similar to those found in medulloblastomas, primitive cerebral neuroectodermal tumors, and fetal cerebellum and cerebrum. Some cells contained 9 + 0 cilia, dense core vesicles, and processes containing microtubules and numerous dense core and clear vesicles, suggesting neuronal differentiation. Astrocytic elements were also present. This study suggests that the predominant cells of these tumors are primitive neuroectodermal elements which have the potential to differentiate along several different lines.

journal_name

Acta Neuropathol

journal_title

Acta neuropathologica

authors

Markesbery WR,Haugh RM,Young AB

doi

10.1007/BF00699239

subject

Has Abstract

pub_date

1981-01-01 00:00:00

pages

143-9

issue

2

eissn

0001-6322

issn

1432-0533

journal_volume

55

pub_type

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