obsolete_empty sella syndrome true Sirarat Sarntivijai DOID:3642 A condition when the SELLA TURCICA is not filled with pituitary tissue. The pituitary gland is either compressed, atrophied, or removed. There are two types: (1) primary empty sella is due a defect in the sella diaphragm leading to arachnoid herniation into the sellar space; (2) secondary empty sella is associated with the removal or treatment of PITUITARY NEOPLASMS. Replaced by Mondo term MONDO_0006740, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0006740 MedDRA:10014567 http://purl.obolibrary.org/obo/MONDO_0006740 NCIt:C84686 Empty sella syndrome (disorder) SNOMEDCT:237722004 3.88.0 Empty sella syndrome MESH:D004652 Empty Sella Syndrome