Which histologic findings are characteristic of pituitary macroadenomas?

Updated: Apr 20, 2020
  • Author: James R Mulinda, MD, FACP; Chief Editor: George T Griffing, MD  more...
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The histology of pituitary macroadenomas shows varying levels of neoplastic activity. Frozen sections are usually not dependable for definitive diagnosis. Hormonal immunohistochemical stains for neuroendocrine markers are useful, especially in the nonfunctioning tumors.

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