Ferreri A J, Garrido S A, Markarian M G, Yañez A
Anatomy Department, Medicine School, Buenos Aires University, Argentina.
Surg Radiol Anat. 1992;14(3):233-9. doi: 10.1007/BF01794946.
The impaired formation of the diaphragma sellae may lead to the development of the empty-sella syndrome. This structure, when fully formed, is a protective barrier against the pulsating action that the cerebrospinal fluid exerts on the sellar content. There are anatomical features which support this belief, but they also suggest that the development of the diaphragma sellae is a factor which determines the morphology of the sella turcica and its contents. Those human specimens which do not have diaphragma sellae or in which it is only partially developed, are characterized by a smaller hypophysis, always located at the inferior and/or posterior half of the sella, with a larger sellar volume and frequently greater fragility of its bony walls. These findings, although rare (5% of the cases), are indirect signs of the important role which the diaphragma sellae plays in the sellar region.
鞍膈形成受损可能导致空蝶鞍综合征的发生。该结构完全形成时,是一种保护屏障,可抵御脑脊液对鞍内结构的搏动作用。有一些解剖学特征支持这一观点,但它们也表明鞍膈的发育是决定蝶鞍形态及其内容物的一个因素。那些没有鞍膈或鞍膈仅部分发育的人体标本,其特点是垂体较小,总是位于蝶鞍的下半部和/或后半部,蝶鞍体积较大,其骨壁常常更脆弱。这些发现虽然少见(占病例的5%),却是鞍膈在蝶鞍区域发挥重要作用的间接征象。