title: Appendicular involvement in perforated sigmoid disease: US and CT findings.
abstract: We describe four patients in whom ultrasound (US) and/or computed tomography (CT) demonstrated a thickened appendix, secondarily enlarged due to perforated sigmoid diverticulitis (n = 2) or carcinoma (n = 2). The underlying pathology was correctly recognized in all cases. Secondary thickening of the appendix due to perforated sigmoid disease provides a potential pitfall mainly on US and may lead to an incorrect diagnosis and thus to unnecessary surgery or a wrong surgical intervention. Although US alone is enough to diagnose periappendicitis and sigmoid disease, combined use of US and CT may improve assessment of its origin and extension.
authors.affiliation: Department of Radiology, Dr. Peset Hospital, Valencia, Spain.
authors.forename: T
authors.initials: T
authors.lastname: Ripollés
authors.forename: L
authors.initials: L
authors.lastname: Concepción
authors.forename: M J
authors.initials: MJ
authors.lastname: Martínez-Pérez
authors.forename: V
authors.initials: V
authors.lastname: Morote
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D000328:Adult; D000368:Aged; D001062:Appendectomy; D001064:Appendicitis / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D003937:Diagnosis, Differential; D004239:Diverticulitis, Colonic / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D012422:Rupture, Spontaneous / Q000150:complications / Q000175:diagnosis / Q000601:surgery; D012811:Sigmoid Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography