• Presse Med · Jan 2009

    [Clinically non functioning pituitary adenomas and gonadotroph-cell adenomas].

    • Philippe Caron.
    • Service d'endocrinologie, maladies métaboliques et nutrition, Pôle cardiovasculaire et métabolique, CHU Larrey, F-31059 Toulouse Cedex 9, France. caron.p@chu-toulouse.fr
    • Presse Med. 2009 Jan 1; 38 (1): 103-6.

    AbstractClinically non-functioning pituitary adenomas and gonadotroph-cell adenomas are relatively common: microadenomas (< 1cm) are usually pituitary incidentalomas while most macroadenomas are revealed by mass effect and/or hypopituitarism. They are rarely associated with high gonadotropin (Luteinizing hormone, LH; Follicle-stimulating hormone FSH) levels while increased alpha-subunit levels are more frequent. Immunocytochemistry of pituitary tumor confirms the diagnosis of clinically non-functioning or gonadotroph-cell adenoma. Pituitary MRI follow-up seems to be indicated for microadenoma. Treatment of macroadenoma with visual field defect or hypopituitarism is transphenoidal surgery, but cure is rarely obtained and tumor recurrence is significant during follow-up. Therefore postoperative treatment (pituitary radiotherapy or medical treatment with dopamine agonists or somatostatin analogs) should be discussed against close follow-up with repeated MRI scans.

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