{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,1]],"date-time":"2025-11-01T13:35:42Z","timestamp":1762004142751,"version":"3.40.4"},"reference-count":14,"publisher":"BMJ","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BMJ Case Reports"],"published-print":{"date-parts":[[2009]]},"abstract":"<jats:p>Most masses encountered within the scrotal sac are neoplastic and occur within the testis; however a subset (2\u20133%) of these tumours is extra-testicular and usually arises from paratesticular tissue. Although uncommon, these tumours have a high incidence of malignancy reaching 30%, mainly represented by sarcomas (90%). Tumours occurring in the paratesticular region may be clinically indistinguishable from testicular tumours, thus resulting in initial misdiagnosis. In addition, the clinical findings are by no means specific to a tumour type and cannot distinguish between a benign and a malignant tumour, which results in difficulty in diagnosis and management. All paratesticular tumours are amenable to adequate surgical resection. Definite diagnosis is determined by histological evaluation.<\/jats:p><jats:p>Leiomyosarcoma, the second most common paratesticular sarcoma after liposarcoma, is represented in the literature primarily as case reports. We report a case of LMS arising from the epididymis and focus on clinical presentation and differential diagnosis of such tumours<\/jats:p>","DOI":"10.1136\/bcr.06.2008.0292","type":"journal-article","created":{"date-parts":[[2009,2,26]],"date-time":"2009-02-26T21:33:45Z","timestamp":1235684025000},"page":"bcr0620080292","source":"Crossref","is-referenced-by-count":4,"title":["A rare cause of a scrotal mass: primary leiomyosarcoma of epididymis"],"prefix":"10.1136","volume":"2009","author":[{"given":"Maher","family":"Mechri","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Samir","family":"Ghozzi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ramzi","family":"Khiari","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fethi","family":"Bougrine","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ammar","family":"Bouziani","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nawfel","family":"BenRais","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2009,2,26]]},"reference":[{"key":"2025042507254234000_2009.feb24_1.bcr0620080292.1","doi-asserted-by":"crossref","first-page":"1032","DOI":"10.1016\/S0022-5347(17)37456-6","article-title":"Adult urological sarcoma","volume":"147","author":"Russo","year":"1992","journal-title":"J Urol"},{"key":"2025042507254234000_2009.feb24_1.bcr0620080292.2","doi-asserted-by":"crossref","first-page":"1112","DOI":"10.1016\/S0090-4295(02)02076-9","article-title":"Paratesticular leiomyosarcoma in an elderly man","volume":"60","author":"Varzaneh","year":"2002","journal-title":"Urology"},{"key":"2025042507254234000_2009.feb24_1.bcr0620080292.3","doi-asserted-by":"publisher","DOI":"10.1097\/00000478-200109000-00004"},{"key":"2025042507254234000_2009.feb24_1.bcr0620080292.4","doi-asserted-by":"crossref","first-page":"600","DOI":"10.1111\/j.1464-410X.1993.tb16033.x","article-title":"Tumours of the spermatic cord and paratesticular tissue. 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