Ultrastructure of Sarcoma 180l
نویسنده
چکیده
Sarcoma 180 has been studied with the electron micro scope. Desmosomes have been demonstrated at the intercel lular junctions in the tumor cells. The desmosome consists of a plate-like cytoplasmic condensation on which bundles of tonofilaments end. The intercellular space at the desmo some level may show a dense, fibrillar material. The presence of desmosomes and tonofilaments demonstrates the epithelial nature of this tumor and thus its identification as a carcinoma. The abundance of periand interchromatin granules, the nucleolar persistence during mitosis, and the presence of dense bodies either close to mitotic chromo somes or in the cytoplasm during nuclear reconstruction, as well as other features of the tumor cells, are briefly described.
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