| Diaphragma sellae | |
|---|---|
 Tentorium cerebelli seen from above. (Diaphragma sellae labeled at upper left.) | |
| Details | |
| Identifiers | |
| Latin | diaphragma sellae |
| TA98 | A14.1.01.107 |
| TA2 | 5378 |
| FMA | 78540 |
| Anatomical terminology | |
Thediaphragma sellae orsellar diaphragm is a small, circular sheet of dura mater forming an (incomplete) roof over thesella turcica and covering thepituitary gland lodged therein. The diaphragma sellae forms a central opening to accommodate the passage of thepituitary stalk (infundibulum)[1] which interconnects the pituitary gland and thehypothalamus.
The diaphragma sellae is an important neurosurgical landmark.[1]
The diaphragma sellae has a posterior boundary at thedorsum sellae and an anterior boundary at thetuberculum sellae along with the two small eminences (one on either side) called themiddle clinoid processes.
The opening formed by the diaphragma sellae varies greatly in size between individuals.[1]
Pituitary tumours may grow to extend superiorly beyond the diaphragma sellae.[1] Violation of the diaphragma sellae during anendoscopic endonasal transsphenoidal pituitary tumor resection will result in acerebrospinal fluid leak.[citation needed]
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This article incorporates text in thepublic domain frompage 814 of the 20th edition ofGray's Anatomy(1918)
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