pedunculated polyp

Thân thiện

A doctor points to a pedunculated polyp on a medical diagram.

Definition

1. Noun:
   • A type of polyp with a stalk: A "pedunculated polyp" is a specific type of growth, often found on mucous membranes (like in the colon), that is attached to the underlying tissue by a narrow, stalk-like structure called a peduncle. This distinguishes it from a "sessile polyp," which lies flat and has no stalk.

Usage Examples

• Noun:
  • During the colonoscopy, the doctor identified and removed a small, pedunculated polyp.
  • Pedunculated polyps are often easier to remove completely than sessile ones because of their defined stalk.

Advanced Usage

• Medical Context: The term is almost exclusively used in medical, anatomical, and pathological contexts to describe the morphology of benign or pre-cancerous growths, particularly in gastroenterology.
  • The pathology report confirmed the pedunculated polyp was a tubular adenoma.

Variants and Related Words

• Polyp (n): A general term for a projecting mass of swollen and hypertrophied or tumorous membrane.
• Sessile polyp (n): A polyp that lacks a stalk and has a broad, flat base of attachment. This is the direct morphological opposite of a pedunculated polyp.
• Peduncle (n): The stalk that supports a structure, such as a polyp, flower, or organ in the body.

Synonyms

• Stalked polyp: A more descriptive, non-technical synonym.
• Polyp on a stalk: A plain-language equivalent.

Related Phrases

• Pedunculated lesion: A broader term that can refer to any abnormal tissue growth (not just a polyp) that is attached by a stalk.
  • The dermatologist examined the pedunculated lesion on the patient's neck.

Học thuật

Noun

1. a polyp with a stalk or peduncle