{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,8]],"date-time":"2025-06-08T20:24:05Z","timestamp":1749414245949,"version":"3.40.4"},"reference-count":28,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2018,9,20]]},"abstract":"<jats:p>A 45-year-old man presented with right-sided testicular swelling and pain. An examination found a tender, firm right testis, a clinically normal left testis and no palpable lymphadenopathy. Tumour and inflammatory markers were within normal limits. A scrotal ultrasound scan showed an intratesticular, avascular lesion measuring 4.4\u00d72.6\u00d71.8\u2009cm. A CT scan of his chest\/abdomen\/pelvis (CT C\/A\/P) showed no metastatic or primary lesions. An elective right-inguinal orchidectomy was subsequently performed. Histopathology showed a cystic mucinous tumour lined with intestinal-type epithelium. Differentials of metastatic adenocarcinoma, possibly of a gastrointestinal origin, a monodermal teratoma, or a borderline mucinous tumour of the testicle (BMTT) were considered. Following 12\u2009p genetic studies and a colonoscopy, both of which found no abnormalities, a presumptive diagnosis of a BMTT was made. The patient is to have an annual urological review with a CT C\/A\/P and 5\u2009yearly colonoscopies.<\/jats:p>","DOI":"10.1136\/bcr-2017-223787","type":"journal-article","created":{"date-parts":[[2018,10,4]],"date-time":"2018-10-04T06:39:58Z","timestamp":1538635198000},"page":"bcr-2017-223787","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":6,"title":["Borderline Mucinous Testicular Tumour: Diagnostic and Management 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