Variable | No. of cases | Rosette-like features | p Value | |
---|---|---|---|---|
None | Present | |||
Histological subtypes | 0.04 | |||
Osteoblastic | 100 | 82 | 18 | |
Chondroblastic | 14 | 14 | 0 | |
Fibroblastic | 17 | 17 | 0 | |
Osteoclast-like giant cell | 0.006 | |||
Sparse | 114 | 102 | 12 | |
Numerous | 17 | 11 | 6 | |
Pleomorphism | 0.007 | |||
Moderate | 87 | 70 | 17 | |
Pronounced | 44 | 43 | 1 | |
Haemangiopericytoma-like pattern | <0.001 | |||
Infrequent | 60 | 59 | 1 | |
Frequent | 71 | 54 | 17 | |
Epithelioid feature | 0.02 | |||
Not prominent | 90 | 82 | 8 | |
Prominent | 41 | 31 | 10 | |
Epithelial membrane antigen | <0.001 | |||
Negative | 110 | 100 | 10 | |
Positive | 21 | 13 | 8 | |
Cytokeratin | 0.02 | |||
Negative | 104 | 86 | 18 | |
Positive | 27 | 27 | 0 | |
CD56 | <0.001 | |||
Negative | 89 | 87 | 2 | |
Positive | 42 | 26 | 16 |