MICROSURGICAL ANATOMY OF THE DIAPHRAGMA SELLAE AND ITS ROLE IN DIRECTING THE PATTERN OF GROWTH OF PITUITARY ADENOMAS

Author:

Campero Alvaro1,Martins Carolina1,Yasuda Alexandre1,Rhoton Albert L.1

Affiliation:

1. Department of Neurological Surgery, University of Florida, Gainesville, Florida

Abstract

Abstract OBJECTIVE To evaluate the anatomic aspects of the diaphragma sellae and its potential role in directing the growth of a pituitary adenoma. METHODS Twenty cadaveric heads were dissected and measurements were taken at the level of the diaphragma sellae. RESULTS The diaphragma sellae is composed of two layers of dura mater. There is a remarkable variation in the morphology of the diaphragm opening. The average anteroposterior distance of the opening was 7.26 mm (range, 3.4–10.7 mm) and the average lateral-to-lateral distance was 7.33 mm (range, 2.8–14.1 mm). CONCLUSION The variability in the diameter of the opening of the diaphragma sellae could explain the growth of pituitary tumors toward the cavernous sinus or toward the suprasellar region.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Clinical Neurology,Surgery

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