A 39-year-old woman complains of developing painful pale fingers on cold exposure for the past 5 years. Recently, she has noticed swollen fingers and tight skin, which limit flexion and extension. She also has new abdominal symptoms that are bothersome. On examination, the skin on the fingers is smooth and shiny with associated edema. The rest of the examination is normal. Which part of the gastrointestinal (GI) tract is most frequently involved in this condition?
A 39-year-old woman complains of developing painful pale fingers on cold exposure for the past 5 years. Recently, she has noticed swollen fingers and tight skin, which limit flexion and extension. She also has new abdominal symptoms that are bothersome. On examination, the skin on the fingers is smooth and shiny with associated edema. The rest of the examination is normal. Which part of the gastrointestinal (GI) tract is most frequently involved in this condition?
💡 Explanation
**Core Concept**
The patient's symptoms and examination findings are suggestive of a systemic condition characterized by vascular insufficiency and GI involvement. This condition is associated with Raynaud's phenomenon, which is a hallmark symptom of a subset of autoimmune diseases.
**Why the Correct Answer is Right**
The patient's symptoms are consistent with limited systemic scleroderma (lSSc), also known as limited systemic sclerosis. lSSc is characterized by the presence of Raynaud's phenomenon, sclerodactyly (tight skin on the fingers), and GI involvement. The GI tract is frequently involved in lSSc, with esophageal dysmotility and reflux being common manifestations. The esophagus is the most frequently involved part of the GI tract in lSSc, leading to symptoms such as dysphagia and regurgitation.
**Why Each Wrong Option is Incorrect**
* **Option A:** The stomach is not the most frequently involved part of the GI tract in lSSc.
* **Option B:** The small intestine is not typically involved in lSSc.
* **Option D:** The rectum is not the most frequently involved part of the GI tract in lSSc.
**Clinical Pearl / High-Yield Fact**
In patients with lSSc, the esophagus is frequently involved, leading to esophageal dysmotility and reflux. This is often the first manifestation of GI involvement in these patients.
**Correct Answer:** C.
✓ Correct Answer: A. esophagus
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