Isolated double pituitary adenomas: A silent corticotroph adenoma and a microprolactinoma

J Clin Neurosci. 2015 Oct;22(10):1676-8. doi: 10.1016/j.jocn.2015.03.040. Epub 2015 Jun 8.

Abstract

We report a 27-year-old woman with amenorrhea and galactorrhea with mildly elevated serum prolactin levels. Her MRI demonstrated a cystic macroadenoma in the left aspect of the sella and a small microadenoma in the right aspect of the sella. Endoscopic transsphenoidal resection of the tumors revealed two histologically distinct tumors. The left tumor was consistent with a silent corticotroph macroadenoma and the right tumor was a prolactin producing microadenoma. Isolated double pituitary adenomas that are clearly separated by normal pituitary gland tissue are extremely rare. The incidence is approximately 0.37-2.6%. The coexistence of double adenomas can pose diagnostic and management challenges for the pituitary neuroendocrine team.

Keywords: Bilateral; Double pituitary adenomas; Macroadenoma; Microadenoma; Prolactinoma; Transsphenoidal surgery.

Publication types

  • Case Reports

MeSH terms

  • ACTH-Secreting Pituitary Adenoma / complications
  • ACTH-Secreting Pituitary Adenoma / diagnosis*
  • ACTH-Secreting Pituitary Adenoma / surgery
  • Adenoma / complications
  • Adenoma / diagnosis*
  • Adenoma / surgery
  • Adult
  • Female
  • Humans
  • Pituitary Neoplasms / complications
  • Pituitary Neoplasms / diagnosis*
  • Pituitary Neoplasms / surgery
  • Pregnancy
  • Prolactinoma / complications
  • Prolactinoma / diagnosis*
  • Prolactinoma / surgery