👉 Archiblastoma, also known as a mesenchymal tumor of the bladder (also called a urothelial cancer), is a type of bladder cancer that arises from the lining cells of the bladder. It can be caused by mutations in genes involved with cell growth and division, which are common in many types of cancer. The exact cause of this condition remains unknown, but it has been linked to certain environmental factors, including exposure to radiation or chemicals. Archiblastoma is usually