| The mitotic activity was focally brisk, with an average of 8 to 10 mitoses per highpower field in these areas. |
| Surface ulceration was also present focally in the tumor with the multifocal papillary excrescences. |
| We are subsidiarily aware of the marginal elements, with a bearing on that which is focally known. |
| Histologically, the blastomous tumor cells were present in diffuse sheets, which focally formed malignant cartilage. |
| Histology revealed a highly cellular, primarily diffuse and focally serpiginous growing tumor with pushing borders and extensive necrosis. |
| A portion of the cystic mass showed benign bladder smooth muscle and serosa focally adhered to the outer cyst wall. |
