ULTRASTRUCTURE OF AN ANAPLASTIC GIANT-CELL CARCINOMA FOUND 8 YEARS AFTER OPERATION ON A PAPILLARY CARCINOMA OF THE THYROID |
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| Authors: | Yoshio Hiasa Noriyuki Ito Masato Ohshima Tomoyoshi Ohmori Asao Seki Toshikazu Tatsumi Hiromu Yokoi Chikayoshi Iwata Yoshio Murata Nobuyuki Ito † |
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| Institution: | *1st. Dept. of Pathology, Nara Medical University, Nara;**1st. Dept. of Surgery, Nissei Hospital, Osaka;***2nd Div. of the Central Clinical Research Laboratory, Nissei Hospital, Osaka;†1st. Dept. of Pathology, Medical School, Nagoya City University, Nagoya |
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| Abstract: | Light and electron microscopic studies have been made on an anaplastic giant-cell tumor that developed in a woman 8 years after an operation on the thyroid for papillary carcinoma. Many giant cells were observed in the anaplastic tumor tissue, but no follicles. Numerous tightly-packed mitochondria and abundant ribosomes were present, but there were no desmosomes. The basement membrane was not distinct. |
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