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Main Histological Features in Embolic and Nonembolic Cardiac Myxomas
| Embolic myxomas (n = 10) | Nonembolic myxomas (n = 17) | P value | |
|---|---|---|---|
| Irregular surface (%) | 100 | 11.8 | <0.001 |
| Superficial collagenization (%) | 10 | 64.7 | <0.02 |
| Myxomatous areas (>50%) | 80 | 41.2 | n.s. |
| Ki-67-positive cells (>5%) | 10 | 5.9 | n.s. |
| Calcification (%) | 0 | 11.8 | n.s. |
| Small superficial thrombi (%) | 60 | 35.3 | n.s. |
| Extramedullary hematopoiesis (%) | 10 | 11.8 | n.s. |
| Cellularity (cells/mm2) | 2577 ± 162 | 2150 ± 150 | n.s. |
n.s., not significant.
