3.组织学通常呈高级别、产生骨样基质的肉瘤,也可以出现灶性软骨肉瘤分化和/或梭形细胞区,不同程度的钙化、编织状的骨小梁周围围绕明显异型性的恶性细胞;
4. 无可识别的恶性上皮性肿瘤成分,包括浸润性和非浸润性。
Primary giant-cell-rich osteosarcoma of the urinary bladder: usefulness of osteocalcin and osteonectin immunohistochemical staining and literature review.
Won KY, Lee CH, Kim YW, Park YK.
Pathology. 2011 Feb;43(2):161-4. doi: 10.1097/PAT.0b013e3283428fc2. Review. No abstract available.