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Combined sellar gangliocytoma and pituitary adenoma in acromegaly or Cushing's disease

A report of 3 cases

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Abstract

Three cases of a composite sellar tumour composed of a gangliocytoma and an adenoma are presented. Two patients who showed acromegaly and hyperprolactinaemia had a gangliocytoma and a growth hormone (GH)-prolactin cell adenoma in close proximity. The gangliocytoma contained growth hormone-releasing hormone (GHRH) by immunohistochemistry. At the electron microscopical level, the gangliocytoma was characterized by numerous synaptic vesicles. The third patient, a child with Cushing's disease, presented a corticotropin-releasing hormone (CRH)-positive gangliocytoma in close contact with an adrenocorticotropic hormone (ACTH) secreting adenoma, the latter a typical densely granulated ACTH cell adenoma. Ultrastructurally, the gangliocytoma revealed synaptic vesicles and sparse secretory granules. The results suggest that gangliocytomas may promote the development of pituitary adenomas by hypersecretion of releasing hormones. Whereas 20 cases of sellar GHRH producing gangliocytomas in acromegaly are reported in the literature, the combination of a CRH-positive gangliocytoma and an ACTH cell adenoma in Cushing's disease is apparently the first case.

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Authors and Affiliations

  1. Department of Pathology, Marienkrankenhaus Hamburg, Alfredstrasse 9, D-22087, Hamburg, Germany

    W. Saeger

  2. Neurosurgical Department, University of Hamburg, Hamburg, Germany

    M. J. A. Puchner & D. K. Lüdecke

Authors
  1. W. Saeger
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  2. M. J. A. Puchner
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  3. D. K. Lüdecke
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Dedicated to Prof. Dr. H.-D. Herrmann, Director of the Neurosurgical Department of the University of Hamburg, on the occasion of his 60 th birthday

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Saeger, W., Puchner, M.J.A. & Lüdecke, D.K. Combined sellar gangliocytoma and pituitary adenoma in acromegaly or Cushing's disease. Vichows Archiv A Pathol Anat 425, 93–99 (1994). https://doi.org/10.1007/BF00193956

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  • DOI: https://doi.org/10.1007/BF00193956

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