Gallbladder cancer is very uncommon. Women are more likely to have gall bladder cancer than men. The risk increases with increasing age. It is more common in patients who have stones in the gall bladder, the risk being about 1%. Other diseases of the gall bladder, such as, porcelain (calcified) gallbladder, choledochal (bile duct) cyst and chronic gallbladder infection also increase the risk of gall bladder cancer
Most head and neck cancers begin in the cells that line the mucosal surfaces in the head and neck area, e.g., mouth, nose, and throat. Mucosal surfaces are moist tissues lining hollow organs and cavities of the body open to the environment. Normal mucosal cells look like scales (squamous) under the microscope, so head and neck cancers are often referred to assquamous cell carcinomas.