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A Case of Pituitary Adenoma with Simultaneous Secretion of TSH and GH Detected by Double Immunostaining Method Akihiko Takechi 1 , Tohru Uozumi 1 , Kazutoshi Mukada 1 , Kaoru Kurisu 1 , Kazunori Arita 1 , Takashi Yano 1 , Taizo Hirohata 1 , Hidenori Ogasawara 1 , Jun Ondo 1 , Ryosuke Hanaya 1 , Kiyoshi Oda 2 , Toshihide Hinoki 2 , Hitoshi Hara 2 1Department Neurosurgery, Hiroshima University School of Medicine 2Second Department of Internal Medicine, Hiroshima University School of Medicine Keyword: TSH-secreting pituitary adenoma , GH , double staining , immunogold-silver staining pp.775-779
Published Date 1991/8/1
DOI https://doi.org/10.11477/mf.1406900235

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  • Abstract
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A rare case of simultaneous hypersecretion of thyroid stimulating hormone (TSH) and growth hormone (GH) in a pituitary adenoma is reported. A 59-year-old male complaining of general fatigue, dyspnea on exertion and finger tremor was admitted. Examination on admission, he revealed with hyperthyroidism and hypersecretion of TSH and thyroid hormones. Administration of TRH did not further increase serum TSH level, and admini-stration of T3 also had no effect on TSH secretion. CT scan showed a pituitary macroadenoma 13mm in diame-ter. MRI demonstrated a homogenously hypointense mass with Gd-DTPA enhancement in the left side of the sella turcica. The entire chromophobic adenoma was removed by trans-sphenoidal surgery. Immunostaining of the specimen showed that the cytoplasm of the adenoma cells was positive for both TSH and GH. Double immunostaining using avidin-biotin-peroxidase complex (ABC) method and immunogold silver staining (IGSS) method, showed that the adenoma cells had been secreting both GH and TSH at the same time. After the adenomectomy, the hyperthyroidism disappeared, and all altered indicators of pituitary function returned to normal.


Copyright © 1991, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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