title: An unusual cause of constipation presenting to the emergency department.
abstract: A case report of a 16-year-old girl who presented to the emergency department with constipation and recurrent urinary tract infections is examined. She gave a history of persistent coccygeal pain stemming from a fall on a trampoline 1 year ago. On examination, she was found to have an abdominal mass arising from the pelvis and paraesthesia of S1-S5 dermatomes in the right leg. An abdominal radiograph showed bony erosion of the sacrum. Magnetic resonance scanning revealed a mass arising from the sacrum and subsequent biopsy diagnosed the tumour as Ewing's sarcoma.
authors.affiliation: Royal Alexandra Hospital, Paisley, West of Scotland, UK. helenjmilne@aol.com
authors.forename: Helen J
authors.initials: HJ
authors.lastname: Milne
mesh_terms: D000293:Adolescent; D001416:Back Pain / Q000209:etiology; D001859:Bone Neoplasms / Q000150:complications / Q000175:diagnosis*; D003050:Coccyx / Q000293:injuries; D003248:Constipation / Q000209:etiology*; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D012512:Sarcoma, Ewing / Q000150:complications / Q000175:diagnosis*; D014552:Urinary Tract Infections / Q000209:etiology