Which term is used for an abnormal growth of tissue projecting from a mucous membrane into a lumen?

Which term is used for an abnormal growth of tissue projecting from a mucous membrane into a lumen?

• A. Lesion
• B. Adenoma
• C. Polyp
• D. Fibroma

Answer: (C)

The term for an abnormal growth of tissue projecting from a mucous membrane into a lumen is "Polyp." Polyps can occur in various organs like the intestines, stomach, and nasal passages, and they represent a focal proliferation of cells walled off from the surrounding tissue. They can be benign or precancerous and often arise from mucosal surfaces, protruding into the body's hollow organs.

This definition differentiates a polyp from other terms such as lesions, which are more general descriptors for any abnormal tissue change, including scars or spots. An adenoma refers specifically to a benign tumor formed from glandular structures in epithelial tissue, and a fibroma is a benign tumor derived from fibrous or connective tissue. While adenomas and fibromas represent specific types of tumors, a polyp is specifically characterized by its structure and location, culminating in its definition as a projection into a lumen.