a slender vertical whitish band immediately anterior to the lamina terminalis and anterior commissure; despite its name, it is not a cortical convolution but is the ventral continuation of the transparent septum. The small ridge of tissue immediately rostral to the lamina terminalis is sometimes designated as a separate part of the subcallosal area and called the paraterminal gyrus [TA] (gyrus paraterminalis [TA]).
Synonym(s): area subcallosa [TA], gyrus paraterminalis [TA], gyrus subcallosus [TA], paraterminal gyrus [TA], subcallosal area [TA], corpus paraterminale, paraterminal body, peduncle of corpus callosum, pedunculus corporis callosi, precommissural septal area, Zuckerkandl convolution
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gyrus subcallosus(1) Subcallosal gyrus; gyrus paraterminalis [NA6].
(2) Subcallosal area; area subcallosa [NA6].
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.