Sonographic differential diagnosis of right lower quadrant pain other than appendicitis

      This paper is only available as a PDF. To read, Please Download here.


      Most patients presenting with right lower quadrant pain are clinically suspected to have acute appendicitis. However, sonographic findings other than appendicitis are detected in patients who are referred for ultrasound to rule out appendicitis. This pictorial essay delineates a number of unsuspected pathological conditions revealed by ultrasound examination of the right lower quadrant that do not involve the appendix but closely mimic acute appendicitis. Imaging studies play a significant role in preoperative diagnosis and determination of proper treatment. The patient can undergo triage for proper further workup and surgical versus nonsurgical management. Acute appendicitis initially was considered on clinical presentation in all of our patients. The correct diagnosis of other pathological conditions was made on the basis of sonographic findings.


      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'


      Subscribe to Clinical Imaging
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect


        • Teixidor HS
        • Honig CL
        • Norsoph E
        • et al.
        Cytomegalovirus infection of the alimentary canal: radiologic findings with pathologic correlation.
        Radiology. 1987; 163: 317-323
        • Puylaert JBCM
        Mesenteric adenitis and acute terminal ileitis: sonographic evaluation using graded compression.
        Radiology. 1986; 161: 691-695
        • Puylaert JBCM
        • Lalisang RI
        • van der Werf SDJ
        • et al.
        Campylobacter ileocolitis mimicking acute appendicitis: differentiation with graded-compression ultrasound.
        Radiology. 1988; 166: 737-740
        • Sigel B
        • Machi J
        • Ramos JR
        • et al.
        Ultrasonic features of pneumatosis intestinalis.
        JCU. 1985; 13: 675-678
        • Withers CE
        • Wilson SR
        The Liver.
        in: 1st ed. Diagnostic Ultrasound. 45. Mosby-Year Book, St Louis1991: 86
        • Puylaert JBCM
        Right-sided segmental infarction of the omentum: clinical, US, and CT findings.
        Radiology. 1992; 185: 169-172
        • Hermans JJ
        • Hermans AL
        • Risseeuw GA
        • Verhaar JC
        • Meradji M
        Appendicitis caused by carcinoid tumor.
        Radiology. 1993; 188: 71-72
        • Jeffrey RB
        • Jain KA
        • Nghiem HV
        Pictorial essay. Sonographic diagnosis of acute appendicitis: Interpretive pitfalls.
        AJR. 1994; 162: 55-59