Sellar

Sellar is an adjective relating to the sella turcica, a saddle-shaped depression in the sphenoid bone at the base of the skull. This depression houses the pituitary gland. Therefore, sellar structures or sellar region refers to the anatomical area surrounding and including the sella turcica and its contents, primarily the pituitary gland, pituitary stalk, and infundibulum.

Sellar pathology refers to diseases or abnormalities affecting this region. Common sellar conditions include:

• Pituitary Adenomas: Benign tumors of the pituitary gland.
• Craniopharyngiomas: Tumors arising from remnants of Rathke's pouch.
• Empty Sella Syndrome: A condition where the sella turcica appears enlarged and filled with cerebrospinal fluid, often compressing the pituitary gland.
• Pituitary Apoplexy: Sudden hemorrhage or infarction of the pituitary gland.
• Meningiomas: Tumors arising from the meninges, which can sometimes involve the sellar region.

Radiological imaging techniques, such as MRI and CT scans, are crucial for visualizing the sellar region and detecting any abnormalities. These images can help diagnose sellar conditions and guide treatment strategies.