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Acta Pathol Jpn. 1986 Sep;36(9):1327-33.

Eosinophilic globules in Kaposi's sarcoma. A histochemical, immunohistochemical, and ultrastructural study.

Abstract

Of the 12 cases, 2 (17%) showed eosinophilic globules in the typical cutaneous type of Kaposi's sarcoma. The globules were stained with periodic acid-Schiff (PAS), periodic acid-Schiff reagent after diastase digestion, and phosphotungstic acid hematoxylin (PTAH), but were not stained with Mayer's mucicarmine, and alcian blue. As the results, these globules might be glycoprotein. The shape of the globules was very similar to glycoprotein globules of yolk sac tumor (endodermal sinus tumor) in the tissue of the ovary and testis. In the yolk sac tumor, similar globules are stained with alpha-fetoprotein, beta-subunit of human chorionic gonadotropin, and alpha-1-antitrypsin using immunohistochemical techniques. Immunoperoxidase investigations were done with antibodies to alpha-fetoprotein, beta-subunit of human chorionic gonadotropin, alpha-1-antitrypsin, and carcinoembryonic antigen in the eosinophilic globules of Kaposi's sarcoma, but these antigens were detected in the globules. The morphogenesis of the glycoprotein globules is not clear yet. A better understanding of the source of globules in Kaposi's sarcoma awaits further research.

PMID:
2431594
[Indexed for MEDLINE]

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