Sella turcica - Definition

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The sella turcica is a bony cavity housing the pituitary gland, located in the brain and responsible for secreting a number of hormones. This cavity is located on the upper side of the bone at the base of the skull, called the sphenoid bone. If the pituitary gland is revealed as absent from this cavity on imaging, scanning, or MRI examination, the condition is sometimes referred to as empty sella syndrome. This is when the pituitary gland is, in fact, flattened against the surrounding bone, a condition which nevertheless does not impede its function in the majority of cases.