{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T19:10:06Z","timestamp":1756321806448,"version":"3.44.0"},"reference-count":12,"publisher":"BMJ","issue":"3","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2021,2,23]]},"published-print":{"date-parts":[[2021,3]]},"abstract":"<jats:p>Abdominal cystic lymphatic malformations are rare pathological entities of uncertain aetiology that usually present in early childhood with indolent abdominal distention. We report the case of a 17-year-old man who presented to our hospital with acute right lower quadrant pain, nausea and anorexia. His blood tests revealed a raised white cell count and elevated inflammatory markers. Clinical examination revealed signs of localised right lower quadrant peritonism. A diagnosis of clinical appendicitis was made, and in keeping with local management protocols, the patient proceeded to theatre for a diagnostic laparoscopy without radiological investigations. Operative findings yielded a normal appendix and a large abdominal cystic malformation. This article highlights the need to keep a broad differential diagnosis when performing surgery on patients with clinically presumed appendicitis and the importance of radiological investigations in clinical decision-making, we also review abdominal cystic lymphatic malformations as a rare diagnostic pitfall.<\/jats:p>","DOI":"10.1136\/bcr-2020-239509","type":"journal-article","created":{"date-parts":[[2021,3,10]],"date-time":"2021-03-10T11:55:57Z","timestamp":1615377357000},"page":"e239509","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["A case of cystic lymphatic malformation mimicking acute appendicitis in an adult patient: a rare diagnostic pitfall"],"prefix":"10.1136","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9290-2703","authenticated-orcid":false,"given":"Maximilian Olavi","family":"Joret","sequence":"first","affiliation":[{"name":"Department of General Surgery, Waitemata District Health 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