{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T19:33:05Z","timestamp":1787167985207,"version":"build-2736575974"},"reference-count":0,"publisher":"S. Karger AG","issue":"2","license":[{"start":{"date-parts":[[2018,10,10]],"date-time":"2018-10-10T00:00:00Z","timestamp":1539129600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[2018,10,10]],"date-time":"2018-10-10T00:00:00Z","timestamp":1539129600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Urol Int"],"published-print":{"date-parts":[[2019]]},"abstract":"<jats:p>Castleman\u2019s disease (CD) is an uncommon type of lymphoproliferative disorder. Its etiology and prevalence are unclear. The retroperitoneum is a very rare site for presentation of the unicentric variant, where it mimics malignant tumors. A 59-year-old man is referred to the urology outpatient clinic for the study of microhematuria found in a routine analysis. CT scan of the abdomen identified a solid, circumscribed mass, measuring 28 \u00d7 30 \u00d7 31 mm in the left para-aortic zone, with homogeneous contrast enhancement. Excisional surgery and regional lymphadenectomy were performed via laparoscopy. Postoperative course concurred without incidences. Histological diagnosis confirmed unicentric CD, hyaline-vascular type. CD is a rare entity, and the unicentric type presents as an asymptomatic mass. Retroperitoneum is a rare localization, where initial imaging diagnosis is unclear and surgical resection is the preferred treatment.<\/jats:p>","DOI":"10.1159\/000493511","type":"journal-article","created":{"date-parts":[[2018,10,10]],"date-time":"2018-10-10T17:01:20Z","timestamp":1539190880000},"page":"245-248","source":"Crossref","is-referenced-by-count":5,"title":["Challenging Diagnosis of a Solitary Retroperitoneal Mass: A Case Report of Castleman\u2019s Disease and Review of the Literature"],"prefix":"10.1159","volume":"103","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9685-8631","authenticated-orcid":false,"given":"Diego\u00a0M.","family":"Carrion","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mario","family":"Alvarez-Maestro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan","family":"G\u00f3mez\u00a0Rivas","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yaroslav","family":"Brygadyr","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eugenia","family":"Garc\u00eda-Fernandez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luis","family":"Mart\u00ednez-Pi\u00f1eiro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[2018,10,10]]},"container-title":["Urologia Internationalis"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/493511","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/493511","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T12:52:45Z","timestamp":1745412765000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000493511"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,10,10]]},"references-count":0,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2019,8,9]]},"published-print":{"date-parts":[[2019,8,15]]}},"URL":"https:\/\/doi.org\/10.1159\/000493511","archive":["Portico"],"relation":{},"ISSN":["0042-1138","1423-0399"],"issn-type":[{"value":"0042-1138","type":"print"},{"value":"1423-0399","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,10,10]]}}}