Empty Sella Syndrome

**Definition:** 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.

**Tree numbers:** - C10.228.140.617.738.200 - C19.700.320

**Synonyms:** - Empty Sella Turcica - Empty Sella Turcica Syndrome