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September 1955

Caves and Cysts of the Septum Pellucidum

Author Affiliations

Rochester, Minn.

AMA Arch NeurPsych. 1955;74(3):259-266. doi:10.1001/archneurpsyc.1955.02330150025004

The purpose of this paper is to report on a study of (1) the incidence of cavum septi pellucidi and (2) the clinical aspects of cysts of the septum pellucidum. Before we present our observations, however, we wish to give certain background information.

BACKGROUND DATA  The septum pellucidum is described in "Gray's Anatomy" as "a thin, vertically placed partition consisting of two laminæ, separated in the greater part of their extent by a narrow chink or interval, the cavity of the septum pellucidum. It is attached, above, to the under surface of the corpus callosum; below, to the anterior part of the fornix behind, and the reflected portion of the corpus callosum in front. It is triangular in form, broad in front and narrow behind; its inferior angle corresponds with the upper part of the anterior commissure. The lateral surface of each lamina takes part in the formation of the

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