A Case of Metastatic Rectal Carcinoma to the Frontal Sinus

The colorectal cancer frequently metastasizes to the liver, lung, peritoneum, bone, ovaries, and the adrenal glands. Metastasis to the frontal sinus from adenocarcinoma of rectum, however, is extremely rare. We recently experienced a case of metastatic paranasal sinus cancer from adenocarcinoma of rectum in a 66-year-old female patient, and present this case with a brief review of the literature. Key words: Colorectal neoplasms ㆍ Frontal sinus ㆍ Neoplasm metastasis