Abstract
PECULIARITIES in size and shape of the sella turcica have been studied for a long time to obtain information concerning lesions of the pituitary. Information useful for diagnostic purposes can be gathered from such studies in case the sella turcica is considerably distended or shows signs of erosion indicating the presence of a pituitary tumor. An abnormally small sella has been interpreted as evidence of a pathologically small or hypoplastic pituitary and usually accepted as confirmatory evidence of hypopituitarism; it is met with in infantilism, adiposogenital dystrophy and related conditions. Abnormalities of the clinoid processes are also well known and their significance, in case the opening of the sella is overbridged or considerably narrowed, lies in the probability of pressure upon the pituitary stalk. This type of sella is frequently met with in cases of migraine, disturbances of salt and water metab-olism and certain types of obesity.
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