{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T13:59:38Z","timestamp":1780581578991,"version":"3.54.1"},"reference-count":9,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2018,9,12]]},"abstract":"<jats:p>Lymphatic filariasis is caused by nematode filariae<jats:italic>Wuchereria bancrofti<\/jats:italic>,<jats:italic>Brugia malayi<\/jats:italic>or<jats:italic>Brugia timori.<\/jats:italic>It is commonly seen in tropical and subtropical regions of the world and affects the lymphatic system of humans, who are the definitive host while mosquito is the intermediate host. The most common manifestation of the disease is hydrocele followed by lower limb lymphoedema and elephantiasis. Although filariasis is much more common entity in north India, its presentation as retroperitoneal cyst is very rare with reported incidence rate of 1\/105 000. We present a case of primary retroperitoneal filariasis in a 52-year-old man, without any classic signsandsymptoms, diagnosed postoperatively after surgical resection following diagnostic uncertaintyandfailure of other medical therapies.<\/jats:p>","DOI":"10.1136\/bcr-2018-226217","type":"journal-article","created":{"date-parts":[[2018,9,26]],"date-time":"2018-09-26T14:56:07Z","timestamp":1537973767000},"page":"bcr-2018-226217","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":3,"title":["Primary retroperitoneal filariasis: a common disease of tropics with uncommon presentation and review of literature"],"prefix":"10.1136","volume":"2018","author":[{"given":"Deepak Kumar","family":"Diwakar","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4302-5921","authenticated-orcid":false,"given":"Nikita","family":"Wadhwani","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nikhil","family":"Prasad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ashwani","family":"Gupta","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2018,9,26]]},"reference":[{"key":"2025042706224968000_2018.sep26_1.bcr-2018-226217.1","first-page":"44","article-title":"Retroperitoneal cyst: an unusual presentation of filariasis","volume":"2","author":"Bakde","year":"2016","journal-title":"J Med Sci Health"},{"key":"2025042706224968000_2018.sep26_1.bcr-2018-226217.2","doi-asserted-by":"crossref","first-page":"359","DOI":"10.1016\/S0377-1237(06)80109-7","article-title":"Lymphatic filariasis in india : problems, challenges and new initiatives","volume":"62","author":"Agrawal","year":"2006","journal-title":"Med J Armed Forces India"},{"key":"2025042706224968000_2018.sep26_1.bcr-2018-226217.3","first-page":"392","article-title":"\u201cAtypical manifestations of filariasis in Pondycherry,\u201d","volume":"34","author":"Madhavan","year":"1972","journal-title":"Indian Journal of Surgery"},{"key":"2025042706224968000_2018.sep26_1.bcr-2018-226217.4","first-page":"386","article-title":"Retroperitoneal cyst of filarial origin","volume":"35","author":"Chittipantulu","year":"1987","journal-title":"J Assoc Physicians India"},{"key":"2025042706224968000_2018.sep26_1.bcr-2018-226217.5","doi-asserted-by":"crossref","first-page":"180","DOI":"10.1016\/j.mjafi.2015.01.006","article-title":"Large retroperitoneal filarial lymphangiectasia","volume":"72","author":"Srivastava","year":"2016","journal-title":"Med J Armed Forces India"},{"key":"2025042706224968000_2018.sep26_1.bcr-2018-226217.6","first-page":"1","article-title":"Retroperitoneal cyst: an uncommon presentation of filariasis","volume":"2015","author":"Ganesan","year":"2015","journal-title":"Case Rep Surg"},{"key":"2025042706224968000_2018.sep26_1.bcr-2018-226217.7","first-page":"1125","article-title":"Filariasis presenting as acute abdominal pain: The role of imaging and image-guided intervention in diagnosis","volume":"10","author":"Metha","year":"2015","journal-title":"Radiol Case Rep"},{"key":"2025042706224968000_2018.sep26_1.bcr-2018-226217.8","doi-asserted-by":"crossref","first-page":"18","DOI":"10.4103\/0971-3026.76048","article-title":"Case report: Filariasis presenting as an intra-abdominal cyst","volume":"21","author":"Kapoor","year":"2011","journal-title":"Indian J Radiol Imaging"},{"key":"2025042706224968000_2018.sep26_1.bcr-2018-226217.9","doi-asserted-by":"crossref","first-page":"57","DOI":"10.4103\/0970-1591.41021","article-title":"Microfilarial worms in retroperitoneal mass: A case report","volume":"17","author":"Giri","year":"2000","journal-title":"Indian J Urol"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2018-226217","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,27]],"date-time":"2025-04-27T13:22:59Z","timestamp":1745760179000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2018-226217"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,9,26]]},"references-count":9,"alternative-id":["10.1136\/bcr-2018-226217"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2018-226217","relation":{},"ISSN":["1757-790X"],"issn-type":[{"value":"1757-790X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,9,26]]}}}