{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,1]],"date-time":"2025-10-01T18:11:31Z","timestamp":1759342291212},"reference-count":7,"publisher":"Scientific Scholar","content-domain":{"domain":["clinicalimagingscience.org"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:p>Extraskeletal osteosarcoma is a malignant mesenchymal soft tissue tumor without attachment to the bone, and is able to produce osteoid or cartilaginous matrix. This entity accounts for 1% of all soft tissue sarcomas. Thus far, less than 35 cases of bladder osteosarcomas have been reported in the literature. These tumors are associated with very poor prognosis. We report a case of primary osteosarcoma of the urinary bladder presenting with intermittent hematuria, dysuria, and right flank pain. Contrast-enhanced computed tomography scan of the abdomen, pelvis, and chest revealed a bladder mass and pulmonary metastases with specks of calcification.<\/jats:p>","DOI":"10.4103\/2156-7514.105145","type":"journal-article","created":{"date-parts":[[2012,12,27]],"date-time":"2012-12-27T05:52:37Z","timestamp":1356587557000},"page":"82","update-policy":"http:\/\/dx.doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["A Rare Case of Primary osteosarcoma of urinary bladder"],"prefix":"10.25259","volume":"2","author":[{"given":"Jagdeesh Kenthanahalli","family":"Siddappa","sequence":"first","affiliation":[{"name":"Department of Radiodiagnosis, M. S. Ramaiah Medical College and Teaching Hospital MSRIT Post, New BEL Road, Bangalore, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Saurabh","family":"Singla","sequence":"additional","affiliation":[{"name":"Department of Radiodiagnosis, M. S. Ramaiah Medical College and Teaching Hospital MSRIT Post, New BEL Road, Bangalore, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aditi","family":"Jain","sequence":"additional","affiliation":[{"name":"Department of Radiodiagnosis, M. S. Ramaiah Medical College and Teaching Hospital MSRIT Post, New BEL Road, Bangalore, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ashok","family":"Kumar","sequence":"additional","affiliation":[{"name":"Department of Radiodiagnosis, M. S. 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