aproctia
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anus
[a´nus] (pl. a´nus)the opening of the rectum on the body surface.

The anus. Left, Endoanal magnetic resonance image of the sphincter muscles. High-definition images can be obtained by using an endoanal MRI coil. Right, Explanatory diagram (coronal view in a normal patient). From Aspinall and Taylor Robinson, 2001.
imperforate anus congenital absence of the normal opening of the rectum. Called also anal atresia and atresia ani.
a·proc·ti·a
(ă-prok'shē-ă),Congenital absence or imperforation of the anus.
[G. a- priv. + prōktos, anus]
aproctia
An obsolete term for:(1) Anal agenesis;
(2) Imperforate anus.
a·proc·ti·a
(ă-prok'shē-ă)Congenital absence or imperforation of the anus.
[G. a- priv. + prōktos, anus]