query: How common are basal cancerous cells?
passage: Basal-cell carcinoma
Basal-cell cancer is a very common skin cancer. It is much more common in fair-skinned individuals with a family history of basal-cell cancer and increases in incidence closer to the equator or at higher altitude. There are approximately 800,000[55] new cases yearly in the United States alone. Up to 30% of Caucasians develop basal-cell carcinomas in their lifetime.[56] In Canada, the most common skin cancer is basal-cell carcinoma (as much as one third of all cancer diagnoses), affecting 1 in 7 individuals over a lifetime.[57]
passage: Endometrial cancer
Clear cell carcinoma is a Type II endometrial tumor that makes up less than 5% of diagnosed endometrial cancer. Like serous cell carcinoma, it is usually aggressive and carries a poor prognosis. Histologically, it is characterized by the features common to all clear cells: the eponymous clear cytoplasm when H&E stained and visible, distinct cell membranes. The p53 cell signaling system is not active in endometrial clear cell carcinoma. This form of endometrial cancer is more common in postmenopausal women.