2012 Volume 58 Issue 11 Pages 642-645
We report a case of a foreign body granuloma in the cheek caused by agar impression material. A 57-year-old woman was referred to our hospital because of a mass in the right cheek. The clinical diagnosis was a benign tumor. We performed tumor extirpation under local anesthesia. The enucleated preparation included a rubber-like foreign body. The histopathological diagnosis was a foreign body granuloma. Fourier transform infrared spectroscopy analysis showed that the foreign body was agar impression material. She had undergone impression taking using agar impression material immediately after tooth extraction. We concluded the foreign body granuloma was caused by aberration of agar impression material during impression taking.
