RT Journal Article SR Electronic T1 Heterotopic brain in the pterygopalatine fossa. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 176 OP 179 VO 18 IS 1 A1 Kallman, J E A1 Loevner, L A A1 Yousem, D M A1 Chalian, A A A1 Lanza, D C A1 Jin, L A1 Hayden, R E YR 1997 UL http://www.ajnr.org/content/18/1/176.abstract AB Heterotopic brain outside the cranial vault is uncommon. It occurs most frequently in the nasal region, although rests elsewhere in the aerodigestive tract have been reported. We describe a case of heterotopic brain in the pterygopalatine fossa.