All of the following statements stand true for telengiectasia of colon except :
**Core Concept**
Telangiectasia of the colon refers to a condition characterized by the presence of multiple, small, dilated blood vessels (telangiectasias) in the colonic mucosa. This condition is often associated with systemic disorders, such as Osler-Weber-Rendu syndrome (hereditary hemorrhagic telangiectasia) or inflammatory bowel disease.
**Why the Correct Answer is Right**
The presence of telangiectasias in the colon can lead to chronic bleeding, anemia, and iron deficiency. The dilated blood vessels are prone to rupture, resulting in recurrent episodes of gastrointestinal bleeding. The exact pathophysiology of telangiectasia is not fully understood, but it is thought to involve abnormalities in vascular development and remodeling. The condition is often diagnosed during endoscopy or colonoscopy, where the characteristic lesions are visualized.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because telangiectasia of the colon is often associated with chronic bleeding, not acute bleeding.
**Option B:** This option is incorrect because telangiectasia of the colon is not typically characterized by a mass or polypoid lesion.
**Option C:** This option is incorrect because telangiectasia of the colon is not typically associated with a significant increase in stool frequency or urgency.
**Clinical Pearl / High-Yield Fact**
Telangiectasia of the colon can be a source of occult bleeding, leading to iron deficiency anemia in some patients. A thorough endoscopic evaluation is essential for diagnosing and managing this condition.
**Correct Answer:** D.