| In rats, tamoxifen potently induces liver carcinomas and also induces uterine tumours when given neonatally. |
| The main problem in the recognition of these lesions lies in differentiating them from primary breast carcinomas. |
| This classification was based on the belief that ductal carcinomas arose from ducts and lobular carcinomas from lobules. |
| Small cell carcinomas are mainly misdiagnosed as other small round cell tumors. |
| These deletions are also found in bronchogenic carcinomas, thus karyotyping does not differentiate mesothelioma from adenocarcinoma of the lung. |
| Unlike basal cell carcinomas, the heaped-up edges of the lesions are fleshy rather than clear in appearance. |
