title: False teeth in an apple core: Unusual presentation of a colorectal carcinoma.
abstract: BACKGROUND
  Ingestion of foreign bodies is common amongst the elderly. Although most foreign bodies pass through the gastrointestinal tract without consequence some cause complications including bowel perforation.
  
  
  METHODS
  We present a case of denture ingestion that lead to the diagnosis of an unsuspected colorectal cancer. The patient underwent radical surgery to remove the tumor and the ingested denture. The operation and recovery were uneventful.
  
  
  CONCLUSIONS
  Complications from ingested foreign bodies mostly occur at points of anatomical intestinal tapering. However, tumors of the gastro-intestinal tract can also lead to obstructions and other complications. As the incidence of tumors increases with age, this possibility should be considered in the differential diagnosis of unusual situation.
  
  
  CONCLUSIONS
  Although impaction of a foreign body in a gastro-intestinal tumor is very rare, our case suggests close follow-up is prudent in the elderly should a foreign body be ingested.
authors.affiliation: The Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Germany. Electronic address: Felix.Rueckert@umm.de.
authors.forename: Felix
authors.initials: F
authors.lastname: Ruckert
authors.affiliation: The Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Germany.
authors.forename: Jens
authors.initials: J
authors.lastname: Jonescheit
authors.affiliation: The Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Germany.
authors.forename: Eduard
authors.initials: E
authors.lastname: Kotzor
authors.affiliation: Department of Endoscopy, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Germany.
authors.forename: Moritz
authors.initials: M
authors.lastname: Sold
authors.affiliation: Institute of Clinical Radiology and Nuclear Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Henzler
authors.affiliation: The Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Germany.
authors.forename: Karoline
authors.initials: K
authors.lastname: Horisberger
keywords: Colorectal cancer; Denture; Ileus; Ingestation