Cauliflower-like appearance

It is more common in squamous epithelium, which often occurs in the original squamous epithelium-covered parts, such as skin, mouth, lips, cervix, vagina, esophagus, penis, etc., and can also occur in metaplasia sites such as bronchus, gallbladder, Although the renal pelvis is not covered by squamous epithelium under normal conditions, squamous cell carcinoma can occur through squamous metaplasia. It is cauliflower-shaped to the naked eye, and can grow deeper.