<unk>  (also known as<unk> tous polyp) is a type of polyp that grows in the gastrointestinal tract; it occurs most commonly in the colon.<unk>  may result in malignanttransformation.<unk>  was first discovered by Helwig in 1946.<unk>  may be classified into flat, sessile, pedunculated and depressed subtypes.<unk>  arises from epithelial tissue, which is normally part of the lining of the colon. Genes associated with the development of<unk>  include APC, TP53, K-ras, STK11 and SMAD4. The prevalence of<unk>  is approximately 3.5 per 100,000 individuals worldwide. The most potent risk factors in the development of<unk>  include familial syndromes such as Turcot syndrome, juvenile polyposis syndrome, and Cowden disease. Surgical removal is the mainstay of therapy for<unk> . Exploratory colonoscopy and cautery snare is the most common approach to the diagnosis and treatment of<unk> . Effective measures for the primary prevention of<unk>  include periodic screening of patients with family history of familial<unk> tous polyposis. Secondary prevention strategies include annual occult blood test and colonoscopy.
Villous adenoma
Ganglion cyst
Hidrocystoma
Pilomatricoma
Sebaceous cysts
Cylindroma
Ganglioneuroma
Mucous retention cyst