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
Cancerjournal_title
Cancerauthors
Kline KT,Damjanov I,Katz SM,Schmidek Hdoi
10.1002/1097-0142(197911)44:5<1692::aid-cncr282044subject
Has Abstractpub_date
1979-11-01 00:00:00pages
1692-9issue
5eissn
0008-543Xissn
1097-0142journal_volume
44pub_type
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