Ictal urge to defecate associated with a right-sided mesial temporal cavernoma.

A 69-year-old right-handed woman experienced, several times a day, a stereotyped feeling of warmth, rapidly followed by an urge to defecate. Magnetic resonance imaging revealed a right-sided mesial temporal cavernoma, and interictal electroencephalogram showed ipsilateral temporofrontal sharp waves. A brain lesion was absent in the only two earlier reported cases of an ictal urge to defecate. In our patient, the ictal urge to defecate seems to involve the non-dominant hemisphere and seems to probably be affecting the autonomic network.