title: Omental liposarcoma presenting as chronic constipation.
abstract: Constipation is a common cause of pediatric abdominal pain seen in pediatric emergency departments (EDs). We present the case of an 11-year-old boy with a 4-month history of chronic constipation and abdominal pain who presented to the children's ED. He was found to have a large abdominal mass that was determined to be a myxoid liposarcoma. An extensive review of the medical literature did not reveal any previous cases of this type of tumor presenting to the ED as chronic constipation.
authors.affiliation: From the *Department of Emergency Medicine, The San Antonio Uniformed Services Health Education Consortium; and †Division of Pediatric Emergency Medicine, Department of Pediatrics, University of Texas Health Science Center, San Antonio, TX.
authors.forename: Jimmy L
authors.initials: JL
authors.lastname: Hightower
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Dire
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D002648:Child; D002908:Chronic Disease; D003248:Constipation / Q000209:etiology*; D006801:Humans; D018208:Liposarcoma, Myxoid / Q000150:complications / Q000000981:diagnostic imaging*; D008297:Male; D009852:Omentum / Q000000981:diagnostic imaging*; D010534:Peritoneal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging*; D011859:Radiography