Ectopic pituitary adenoma of the third ventricle. Case report

B. K. Kleinschmidt-DeMasters, K. R. Winston, D. Rubinstein, M. H. Samuels

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


Ectopic pituitary adenomas without associated intrasellar adenomas are rare and are usually located in the sphenoid sinus. Most have been reported without modern radiological, endocrinological, or electron microscopic (EM) documentation. The case of a 47-year-old man with a third ventricular, ectopic, clinically non-secretory pituitary adenoma, which was shown to be a gonadotrophic adenoma by immunohistochemical and EM study, is reported. Neurological examination, extensive neurodiagnostic imaging, surgical anatomical observation, and endocrinological evaluation showed no evidence of neoplasia outside the third ventricle.

Original languageEnglish (US)
Pages (from-to)139-142
Number of pages4
JournalJournal of neurosurgery
Issue number1
StatePublished - 1990
Externally publishedYes


  • Pituitary adenoma
  • ectopic tumor
  • third ventricle

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology


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