There are various types of bladder tumors like
squamous cell carcinoma (arise in the
epithelial cells), adenocarcinoma (arise in the glandular epithelium), undifferentiated carcinoma, rhabdomyosarcoma (tumor of the striated muscle - form of fibers combined into parallel fibers like the skeletal and the cardiac muscles), fibroma (tumors made of fibrous or connective
tissue.