As an oncologist with years of experience in cancer research and treatment, I can provide you with an informed answer to your question. It's important to note that the speed at which a cancer progresses and becomes fatal can vary greatly depending on several factors, including the type of cancer, the stage at which it is detected, the patient's overall health, and the treatment options available. Among the various types of cancer, pancreatic cancer is often cited as one of the fastest-acting and most aggressive forms of cancer. This is due to several reasons: 1. Late Detection: Pancreatic cancer is often diagnosed at a late stage because its early symptoms are nonspecific and can be easily overlooked or mistaken for less serious conditions. 2. Aggressive Growth: Pancreatic cancer tends to grow and spread quickly, often metastasizing to other parts of the body before treatment can be effective. 3. Limited Treatment Options: The options for treating pancreatic cancer are limited, and the cancer can be resistant to many of the standard treatments used for other types of cancer. According to the data you provided, pancreatic cancer resulted in 162,878 deaths, which is a significant number, reflecting its aggressive nature and poor prognosis. However, it's crucial to understand that the number of deaths does not solely determine how quickly a cancer kills. Other factors must be considered, and it's always important to discuss individual cases with healthcare professionals. read more >>

Breast cancer: 206,983 lives. ... Pancreatic cancer: 162,878 lives. ... Prostate cancer: 144,926 lives. ... Leukemia: 108,740 lives. ... Non-Hodgkin lymphoma: 104,407 lives. ... Liver and intrahepatic bile duct cancer: 79,773 lives. ... Ovarian cancer: 73,638 lives. ... Esophageal cancer: 66,659 lives.More items...read more >>