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Diaphragma sellae

The diaphragma sellae or sellar diaphragm is a small, circular sheet of dura mater forming an (incomplete) roof over the sella turcica and covering the pituitary gland lodged therein. The diaphragma sellae forms a central opening to accommodate the passage of the pituitary stalk (infundibulum)[1] which interconnects the pituitary gland and the hypothalamus.

Diaphragma sellae
Tentorium cerebelli seen from above. (Diaphragma sellae labeled at upper left.)
Details
Identifiers
Latindiaphragma sellae
TA98A14.1.01.107
TA25378
FMA78540
Anatomical terminology
[edit on Wikidata]

The diaphragma sellae is an important neurosurgical landmark.[1]

Anatomy edit

Boundaries edit

The diaphragma sellae has a posterior boundary at the dorsum sellae and an anterior boundary at the tuberculum sellae along with the two small eminences (one on either side) called the middle clinoid processes.

Variation edit

The opening formed by the diaphragma sellae varies greatly in size between individuals.[1]

Clinical significance edit

Pituitary tumours may grow to extend superiorly beyond the diaphragma sellae.[1] Violation of the diaphragma sellae during an endoscopic endonasal transsphenoidal pituitary tumor resection will result in a cerebrospinal fluid leak.[citation needed]

Additional images edit

References edit

  1. ^ a b c d Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42nd ed.). New York. p. 398. ISBN 978-0-7020-7707-4. OCLC 1201341621.{{cite book}}: CS1 maint: location missing publisher (link)

  This article incorporates text in the public domain from page 814 of the 20th edition of Gray's Anatomy (1918)

External links edit

  • Anatomy photo:28:14-0101 at the SUNY Downstate Medical Center - "Cranial Fossae: Diaphragma Sellae"


diaphragma, sellae, diaphragma, sellae, sellar, diaphragm, small, circular, sheet, dura, mater, forming, incomplete, roof, over, sella, turcica, covering, pituitary, gland, lodged, therein, diaphragma, sellae, forms, central, opening, accommodate, passage, pit. The diaphragma sellae or sellar diaphragm is a small circular sheet of dura mater forming an incomplete roof over the sella turcica and covering the pituitary gland lodged therein The diaphragma sellae forms a central opening to accommodate the passage of the pituitary stalk infundibulum 1 which interconnects the pituitary gland and the hypothalamus Diaphragma sellaeTentorium cerebelli seen from above Diaphragma sellae labeled at upper left DetailsIdentifiersLatindiaphragma sellaeTA98A14 1 01 107TA25378FMA78540Anatomical terminology edit on Wikidata The diaphragma sellae is an important neurosurgical landmark 1 Contents 1 Anatomy 1 1 Boundaries 1 2 Variation 2 Clinical significance 3 Additional images 4 References 5 External linksAnatomy editBoundaries edit The diaphragma sellae has a posterior boundary at the dorsum sellae and an anterior boundary at the tuberculum sellae along with the two small eminences one on either side called the middle clinoid processes Variation edit The opening formed by the diaphragma sellae varies greatly in size between individuals 1 Clinical significance editPituitary tumours may grow to extend superiorly beyond the diaphragma sellae 1 Violation of the diaphragma sellae during an endoscopic endonasal transsphenoidal pituitary tumor resection will result in a cerebrospinal fluid leak citation needed Additional images edit nbsp Dura mater and its processes exposed by removing part of the right half of the skull and the brain nbsp Human brain dura mater reflections References edit a b c d Standring Susan 2020 Gray s Anatomy The Anatomical Basis of Clinical Practice 42nd ed New York p 398 ISBN 978 0 7020 7707 4 OCLC 1201341621 a href Template Cite book html title Template Cite book cite book a CS1 maint location missing publisher link nbsp This article incorporates text in the public domain from page 814 of the 20th edition of Gray s Anatomy 1918 External links editAnatomy photo 28 14 0101 at the SUNY Downstate Medical Center Cranial Fossae Diaphragma Sellae Imaging at wfns org Portal nbsp Anatomy nbsp This neuroanatomy article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Diaphragma sellae amp oldid 1197960535, wikipedia, wiki, book, books, library,

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