title: Fetus in fetu.
abstract: Fetus in fetu is an extremely uncommon cause of abdominal mass in the neonate. A case of retroperitoneal fetus in fetu in a 2 week old boy is reported, the excised mass containing a round mass, covered by hair, containing brain tissue; 2 feet and 2 arms; a cavity containing a loop of intestine of 15 centimeters length, small penis and testis.
authors.affiliation: Department of Pediatric Surgery, Al-Noor Specialist Hospital, PO Box 6251, Makkah, Kingdom of Saudi Arabia. maher1zaiem@yahoo.com
authors.forename: M M
authors.initials: MM
authors.lastname: Al-Zaiem
authors.forename: A H
authors.initials: AH
authors.lastname: Algarni
mesh_terms: D000008:Abdominal Neoplasms / Q000473:pathology; D003937:Diagnosis, Differential; D005333:Fetus / Q000002:abnormalities* / Q000473:pathology; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012187:Retroperitoneal Space / Q000473:pathology; D013724:Teratoma / Q000473:pathology