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Appendiceal diverticulitis: a rare pathology masquerading as acute appendicitis
EP34388
Poster Title: Appendiceal diverticulitis: a rare pathology masquerading as acute appendicitis
Submitted on 30 Oct 2020
Author(s): J L Chen, D J Bell
Affiliations: North Middlesex University Hospital
This poster was presented at BIR2020
Poster Views: 553
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Poster Information
Abstract: Appendiceal diverticulitis is a rare but important differential diagnosis of right iliac fossa pain. For many years, it has been disregarded as a variant of acute appendicitis, due to its relatively rare incidence and seemingly similar clinical features. However, recent studies have established that appendiceal diverticulitis is a distinct clinical entity, with different demographic characteristics and clinical presentation. Furthermore, it is associated with significantly increased risk of severe complications and mortality, as well as neoplastic disease. This necessitates timely diagnosis and management, consisting of immediate surgical resection followed by thorough pathological examination, or prophylactic appendicectomy in asymptomatic patients. Here, we present a clinical case of diverticulitis of the vermiform appendix in a 58-year-old male. We discuss the classification of appendiceal diverticulosis and diverticulitis, their clinical characteristics, potential complications, and management. We compare and contrast the radiological appearances of appendiceal diverticulitis and acute appendicitis, emphasising that diagnostic imaging plays a pivotal role in their differentiation. Radiologists should be aware of this condition and its characteristic appearances on ultrasound and CT, to enable its accurate and timely diagnosis.Summary: Appendiceal diverticulitis is a rare but important differential diagnosis of right iliac fossa pain. Radiologists should be aware of this condition and its characteristic appearances on ultrasound and CT, to enable its accurate and timely diagnosis.References: Thompson J, Selvaraj D, Nicola R. Mimickers of acute appendicitis. Journal of the American Osteopathic College of Radiology 2014; 3(4): 10-21.

Ito D, Miki K, Seiichiro S, Hata S, Kobayashi K, Teruya M, Kaminishi M. Clinical and computed tomography findings of appendiceal diverticulitis vs acute appendicitis. World Journal of Gastroenterology 2015; 21(13): 3921.

Lipton S, Estrin J, Glasser I. Diverticular disease of the appendix. Surgery, Gynecology & Obstetrics 1989; 168(1): 13-6.

AbdullGaffar B. Diverticulosis and diverticulitis of the appendix. International Journal of Surgical Pathology 2009; 17(3): 231-7.

Collins DC. A study of 50,000 specimens of the human vermiform appendix. Surgery, Gynecology & Obstetrics 1955; 101: 437-45.

Dupre MP, Jadavji I, Matshes E, Urbanski SJ. Diverticular disease of the vermiform appendix: a diagnostic clue to underlying appendiceal neoplasm. Human Pathology 2008; 39(12): 1823-6.

Kelynack TN. A cont
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