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www.reference.com/article/characteristics-precancerous-skin-lesions-97e4eec252d49202

Symptoms of precancerous lesions include persistent scaly patches frequently on the scalp or lip, small horn-shaped growths, and moles that are oddly colored, oddly shaped or changing. Precancerous lesions are identified by WebMD as abnormalities in skin cells that may become cancer.

www.reference.com/article/can-polyps-liver-93836588adcb1ff6

The liver does not develop polyps, but it can develop both cysts and tumors, according to Cleveland Clinic. Liver cysts occur in approximately 5 percent of the population. Cystic tumors may be benign or develop into cancerous growths, which are referred to as cystadenocarcinoma.

www.reference.com/world-view/symptoms-lung-polyps-d0a8bf7fa5ba5c8

Lung nodules rarely produce any symptoms. However, in certain cases, symptoms may include chronic cough, wheezing and shortness of breath. Lung nodules are small growths that form from tissue, states Mayo Clinic.

www.reference.com/article/stomach-polyps-cancerous-1e3fd1c61e7464e7

Some stomach, or gastric, polyps are cancerous while others are not, according to Mayo Clinic. The majority of them do not become malignant. However, adenomas, the rarest kind, are most likely to become cancerous. These masses of glandular cells on the inside lining of the stomach are linked to infl

www.reference.com/article/causes-polyps-nose-349db3d8cd1d1ad4

Nasal polyps are often caused by irritation in the nose resulting from an allergy or infection that causes the nasal passages to become red and swollen with dripping fluid, explains Healthline. Nasal polyps form into a small cyst that can potentially block nasal passages.

www.reference.com/world-view/causes-colon-polyps-70fe965d5d6a4756

The cause of colon polyps is unknown as of October 2014, according to Healthline and the American Society for Gastrointestinal Endoscopy. However, risks for developing colon polyps include having a family history of them, a history of ovarian or uterine cancer, having a high-fat and low-fiber diet a

www.reference.com/article/symptoms-colonic-polyps-686e2f8ffbb39099

Colonic polyps usually have no symptoms, explains Mayo Clinic. Patients may not know they have polyps until the doctor notices them during a bowel examination. However, some people may encounter symptoms such as rectal bleeding, change in bowel habits, pain, vomiting and nausea. Other possible sympt

www.reference.com/article/polyps-colon-2f71c544c3d09471

Colon polyps are growths that develop along the inner lining of the large intestines and penetrate into the colon, according to MedicineNet. The size of the growths can vary.

www.reference.com/article/treatment-options-colonic-polyps-b985d6c3bc1681b4

Colonic polyps are generally removed during a colonoscopy or sigmoidoscopy, and then examined to see if they are a type that might develop into cancer, according to WebMD. If large polyps are found, surgery may be necessary.

www.reference.com/article/polyp-cervix-b86f63529bbe7429

A cervical polyp is diagnosed through a physical examination and a biopsy, according to MedlinePlus. During the physical examination, if the doctor sees fingerlike smooth growths that are smooth and red or purple, a cervical biopsy is performed to determine if the polyp is cancerous. Most cervical p