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polypoid cancer
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polypoid cancer

pathology
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Quick Summary

A polyp is a growth projecting from the wall of a cavity lined with a mucous membrane. Polyps can be sessile (broad-based) or pedunculated (having a narrow neck) and may have a smooth or irregular surface. Common locations include the nose, urinary bladder, and gastrointestinal tract, particularly the rectum and colon.1

While most polyps are benign, a small percentage can be precancerous or contain cancer. It can take three to five years for a colon polyp to develop and another three to five years to potentially transform into a carcinoma. When a tumor projects into a cavity, it's called a polyp. A malignant polyp is termed a polypoid cancer.123

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3 Britannica Sources
  1. polyp
  2. cancer - Precancerous stage
  3. cancer - Nomenclature of benign tumors

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