title: Colorectal Adenocarcinoma Metastasizing to the Oral Mucosa of the Upper Jaw.
abstract: BACKGROUND
  Metastases to the oral cavity are uncommon, accounting for only 1% of all oral malignant tumors. When they occur they mostly originate from primary tumors of the lungs, kidney, breast and prostate. Oral metastases from the primary colorectal carcinoma are much more infrequent.
  
  
  METHODS
  We present an unusual case of a 78-year-old man with a soft tissue oral metastasis originating from the primary colorectal carcinoma.The patient was referred to the Department of Otorhinolaryngology, Head and Neck Surgery with an intraoral mass on the right side of the maxilla. The diagnosis was confirmed by histopathologic examination and immunohistochemical analysis.
  
  
  CONCLUSIONS
  Oral metastases occur rarely and often can mimic much more common benign lesions, therefore they should be considered as a possibility in a differential diagnosis.
authors.forename: Marijan
authors.initials: M
authors.lastname: Baranović
authors.forename: Bruno
authors.initials: B
authors.lastname: Vidaković
authors.forename: Damir
authors.initials: D
authors.lastname: Sauerborn
authors.forename: Berislav
authors.initials: B
authors.lastname: Perić
authors.forename: Ivana
authors.initials: I
authors.lastname: Uljanić
authors.forename: Ivana
authors.initials: I
authors.lastname: Mahovne
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000175:diagnosis / Q000556:secondary*; D000368:Aged; D015179:Colorectal Neoplasms / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D007573:Jaw Neoplasms / Q000175:diagnosis / Q000556:secondary*; D008297:Male; D008437:Maxilla / Q000473:pathology; D009061:Mouth Mucosa / Q000473:pathology*; D009062:Mouth Neoplasms / Q000175:diagnosis / Q000556:secondary*; D010157:Palatal Neoplasms / Q000556:secondary