title: Diagnosis of appendicitis: imaging findings in patients with atypical clinical features.
abstract: Acute appendicitis is usually diagnosed on the basis of signs, symptoms, and results of simple laboratory tests. However, in patients with atypical clinical features, imaging studies play a significant role in preoperative diagnosis and determination of proper treatment. In this pictorial essay, we present a spectrum of imaging findings in patients whose clinical features were unusual because of the abnormal position of the appendix, the presence of other illnesses, or the presence of complications in children. Appendicitis was not initially considered on clinical presentation in any of our cases. In most cases, the correct diagnosis of appendicitis was made or, at least in retrospect, could have been made on the basis of imaging findings.
authors.affiliation: Department of Radiological Sciences, University of California, Irvine Medical Center, Orange 92668-3298.
authors.forename: C H
authors.initials: CH
authors.lastname: Wong
authors.forename: T M
authors.initials: TM
authors.lastname: Trinh
authors.forename: A N
authors.initials: AN
authors.lastname: Robbins
authors.forename: S J
authors.initials: SJ
authors.lastname: Rowen
authors.forename: A J
authors.initials: AJ
authors.lastname: Cohen
mesh_terms: D000208:Acute Disease; D000328:Adult; D001064:Appendicitis / Q000000981:diagnostic imaging*; D001065:Appendix / Q000000981:diagnostic imaging*; D002648:Child; D003287:Contrast Media; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007416:Intestinal Perforation / Q000000981:diagnostic imaging; D008297:Male; D012422:Rupture, Spontaneous; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media