| 释义 |
Definition of pleomorphism in English: pleomorphismnoun ˌpliːə(ʊ)ˈmɔːfɪz(ə)mˌplēəˈmôrfizəm mass nounThe occurrence of more than one distinct form of a natural object, such as a crystalline substance, a virus, the cells in a tumour, or an organism at different stages of the life cycle. Example sentencesExamples - Vascular invasion, mitosis, and cell pleomorphism are not observed in cases of bronchiolitis obliterans organizing pneumonia.
- The spindle cells showed moderate nuclear pleomorphism and scattered mitotic figures.
- Bizarre cells, nuclear pleomorphism, and mitotic figures were easily found.
- Mitosis, size of tumour, necrosis and pleomorphism are thought to be prognostic factors for aggressiveness of solitary fibrous tumours.
- Several histologic findings, including increased number and size of cells, greater nuclear pleomorphism, and increased mitotic activity, suggest a well-differentiated fibrosarcoma.
Derivatives adjective They separated the tumors into 4 types: ceruminous gland adenocarcinoma, ceruminous adenoma, adenoid cystic carcinoma, and pleomorphic adenoma. Example sentencesExamples - The sarcomatous component featured pleomorphic, plump spindle cells with prominent mitoses.
- It is possible that they represent other histologies, such as pleomorphic adenomas.
- The tumor cells had slightly eosinophilic cytoplasm and pleomorphic nuclei with prominent nucleoli.
- A representative cut section of pleomorphic adenoma with extensive necrosis is shown in Figure 1.
Origin Mid 19th century: from Greek pleiōn 'more' + morphē 'form' + -ism. Definition of pleomorphism in US English: pleomorphismnounˌplēəˈmôrfizəm The occurrence of more than one distinct form of a natural object, such as a crystalline substance, a virus, the cells in a tumor, or an organism at different stages of the life cycle. Example sentencesExamples - Several histologic findings, including increased number and size of cells, greater nuclear pleomorphism, and increased mitotic activity, suggest a well-differentiated fibrosarcoma.
- Bizarre cells, nuclear pleomorphism, and mitotic figures were easily found.
- The spindle cells showed moderate nuclear pleomorphism and scattered mitotic figures.
- Vascular invasion, mitosis, and cell pleomorphism are not observed in cases of bronchiolitis obliterans organizing pneumonia.
- Mitosis, size of tumour, necrosis and pleomorphism are thought to be prognostic factors for aggressiveness of solitary fibrous tumours.
Origin Mid 19th century: from Greek pleiōn ‘more’ + morphē ‘form’ + -ism. |