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Pituitary Macroadenoma

Last Updated: September 28, 2018

Figure 1: Harvey Cushing abandoned transsphenoidal surgery in approximately 1929 as his transcranial techniques progressed and were deemed safe. The transcranial route allowed him to more thoroughly decompress the chiasm.  In these photos, Cushing demonstrated his classic “frontal” incision for resection of pituitary adenomas.

Endoscopic Transsphenoidal Removal of a Giant Pituitary Adenoma

Diagnosis, Indications for Surgery and Preoperative Considerations

For a detailed discussion of the diagnostic indications for surgery and preoperative considerations in patients with suspected pituitary adenoma, please refer to the chapter on Pituitary Adenoma: Diagnosis and Operative Considerations.

Figure 2: Pituitary macroadenomas are larger than 10 mm in diameter and demonstrate mass effec...