[Brain metastasis from rectal adenocarcinoma: about a case and review of the literature].

The most common primary sites for bone metastases in men are lung, prostate, kidney, thyroid or bladder. Colorectal origin is rare. Few studies have described this type of metastases; the axial skeleton or the pelvis are the most common metastasis locations. Craniofacial location is exceptional. We here report the case of a 38 years old man treated for metastatic rectal cancer metastasized to temporal bone. He initially had undergone surgical procedure for low anterior resection, tumor was classified as pT3N0M0; 24 months after the patient had left exophthalmos revealing a temporal tumoral process. Evolution and context favoured metastasis. In conclusion, this study reporting an exceptional case of craniofacial bone metastasis from multi-metastatic colorectal cancer will enrich the scarce data reported in the literature related to bone metastases from primary colorectal cancer.