Metastasis in the gingiva from colon adenocarcinoma

A case of gingival metastatic tumor from a colon adenocarcinoma is reported. The patient had been diagnosed with colon carcinoma and underwent a colectomy with D2 dissection, followed by chemotherapy. Nine months after the initial treatment, she noticed a periodontal gingival swelling at the site of her right lower second premolar and was referred to our clinic. The clinical diagnosis was an epulis granulomatosa or pyogenic granuloma. A metastatic adenocarcinoma in the gingiva from colon carcinoma was identified after the histopathological examination. Although rare, oral metastatic tumors should be included in the differential diagnosis, particularly if the patient has a prior history of malignancies.