What are the 10 worst cancers?

As a language model, I don’t have real-time data and my knowledge cutoff date is September 2021. Cancer rankings can vary depending on various factors such as incidence, mortality rates, survival rates, and the availability of effective treatments. However, based on general statistics and medical research, here are 10 cancers that are often considered to have poor prognoses:

1. Pancreatic cancer: Pancreatic cancer is known for its aggressive nature and is often diagnosed at an advanced stage, leading to a low survival rate.
2. Lung cancer (small cell): Small cell lung cancer is a highly aggressive form of lung cancer that tends to spread quickly and has a poorer prognosis compared to non-small cell lung cancer.
3. Liver cancer: Liver cancer, especially hepatocellular carcinoma (HCC), has a high mortality rate due to its tendency to be diagnosed at an advanced stage and limited treatment options.
4. Esophageal cancer: Esophageal cancer is often diagnosed at a late stage, and the prognosis can be poor due to its aggressive nature and limited treatment options.
5. Ovarian cancer: Ovarian cancer is often diagnosed at an advanced stage and can be challenging to treat, resulting in a relatively low survival rate.
6. Brain cancer (glioblastoma): Glioblastoma is a type of aggressive brain cancer that is difficult to treat and has a high mortality rate.
7. Stomach cancer: Stomach cancer is often diagnosed at an advanced stage and can have a poor prognosis due to its aggressive nature and limited treatment options.
8. Mesothelioma: Mesothelioma is a rare and aggressive cancer usually caused by exposure to asbestos, and it has a poor prognosis due to its aggressive nature and limited treatment options.
9. Head and neck cancers: Some head and neck cancers, such as those involving the oral cavity, larynx, and hypopharynx, can have poor prognoses due to their tendency to be diagnosed at advanced stages and their impact on essential functions like breathing and swallowing.
10. Pancreatic neuroendocrine tumors (NETs): Pancreatic NETs are a rare type of pancreatic cancer that can have a poor