Neurohypophyseal germinoma traced from its earliest stage via magnetic resonance imaging: Case report

  • Oishi M
  • Morii K
  • Okazaki H
 et al. 
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BACKGROUND - We report a case in which magnetic resonance imaging (MRI) documented the formation of a neurohypophyseal germinoma from its earliest stage. CASE DESCRIPTION - A 9-year-old girl presented with polyuria, polydipsia, and growth retardation. Urinary and endocrinological examination indicated diabetes insipidus (DI) and growth hormone deficiency. No clear evidence of a mass in the hypothalamo-pituitary area was apparent on the first MRI scan. Follow-up MRIs and endocrinological examinations revealed that a tumor, arising from the stalk and posterior lobe of the pituitary gland, formed a mass and caused anterior pituitary function to deteriorate. Histologic diagnosis was germinoma based on open biopsy. CONCLUSION - Radiologic findings in this case indicated the primary site of this intrasellar germinoma to be the hypothalamo-neurohypophyseal region, designating this a 'neurohypophyseal germinoma.' Copyright © 2001 Elsevier Science Inc.

Author-supplied keywords

  • Diabetes insipidus
  • Magnetic resonance imaging
  • Neurohypophyseal germinoma

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  • Makoto Oishi

  • Ken Morii

  • Hideko Okazaki

  • Tetsuro Tamura

  • Ryuichi Tanaka

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