2010年1月5日 · Small cell osteosarcoma is an exceedingly rare tumor, estimated to account for less than 1% of all cases of osteosarcoma. 1 Small cell osteosarcoma was first described as a neoplasm having microscopic features of osteosarcoma and of Ewing sarcoma in that small cells cytomorphologically similar to those seen in Ewing sarcoma were found in a ...

2022年12月18日 · Small cell osteosarcomas (SCOS) are a rare subtype of osteosarcoma characterized by the production of small round cells. Small cell osteosarcomas account for approximately 1.5% of osteosarcomas. They occur mainly in young adolescents with a mild female predilection but have been found in a wide age range 1-4.

Small round cell osteosarcoma is a very rare type of osteosarcoma, histologically mimicking other small round cell malignancies of bone, most notably Ewing sarcoma. To distinguish small cell osteosarcoma from other primary small cell malignancies of bone, we evaluated the immunohistochemical (IHC) e …

Introduction: Small cell osteosarcoma (SCOS) is a rare variant of osteosarcoma that mimics other round cell tumours of bone, particularly Ewing sarcoma (ES).1,2 NKX2.2 immunohistochemistry has greatly improved distinction between SCOS and ES.3

Small cell osteosarcoma (SCOS) is a rare subtype of osteosarcoma, with limited studies mainly focusing on histological features. Our study aims to analyze our own patients and those reported in the literature to increase the recognition of this rare disease, to evaluate patient survival and to further determine potential prognostic factors.

Small-cell osteosarcoma, a subtype of osteogenic sarcoma, consists of sheets of round cells that produce an osteoid matrix. It may be confused with Ewing sarcoma if the osteoid matrix is not included in the biopsy. The distinctive radiographic features of an osteoblastic tumor and a …

Small cell variant of osteosarcoma is a controversial entity. It makes up 1% to 2% of all osteosarcomas. The histologic features are inbetween conventional osteosarcoma and Ewing Sarcoma/PNET. It shows small round tumor cells with scant cytoplasm, hyperchromatic nuclei lacking significant pleomorphism, and scant production of mineralized matrix.

2000年9月29日 · Small cell osteosarcoma of bone is a rare form of osteosarcoma, with an incidence rate of 1.3%. This tumor must be differentiated from other small cell malignancies because of treatment considerations, particularly patient response to chemotherapy.

Small cell osteosarcoma (SCO) is a rare but distinct variant of osteosarcoma. Although Hutter et al. [1] in 1966 and Jacobson in 1977 [2] described small cell tumors of bone capable of differentiating into bone and cartilage, Sim and collaborators [3], reporting in...

Small round cell osteosarcoma is a very rare type of osteosarcoma, histologically mimicking other small round cell malignancies of bone, most notably Ewing sarcoma.