Puetz-Jegher syndrome is characterised by
**Core Concept**
Puetz-Jegher syndrome is a rare autosomal dominant genetic disorder characterized by intestinal polyps, particularly in the small intestine, and is associated with a high risk of colorectal cancer. It results from mutations in the *APC* gene, which is also implicated in familial adenomatous polyposis (FAP), though the polyp phenotype in Puetz-Jegher is distinct and often presents with early-onset gastrointestinal symptoms.
**Why the Correct Answer is Right**
Puetz-Jegher syndrome is defined by the presence of multiple intestinal polyps, especially in the duodenum and jejunum, which are typically hamartomatous and can lead to bleeding, obstruction, or malignancy. These polyps arise due to mutations in the *APC* gene, leading to dysregulation of the Wnt signaling pathway. The syndrome also includes dental anomalies and gastrointestinal symptoms, but the hallmark feature is the development of multiple intestinal polyps.
**Why Each Wrong Option is Incorrect**
Option A: Deafness is not a feature of Puetz-Jegher syndrome; it is associated with syndromes like Pendred or Waardenburg.
Option B: Supernumerary teeth are seen in conditions like hypodontia or cleidocranial dysplasia, not Puetz-Jegher.
Option D: Scleroderma is a connective tissue disorder involving skin and internal organs, unrelated to Puetz-Jegher syndrome.
**Clinical Pearl / High-Yield Fact**
Remember: Puetz-Jegher syndrome = intestinal polyps + dental anomalies + early GI symptoms. It is distinct from FAP, though both involve *APC* mutations. Always consider it in patients with multiple intestinal polyps and a family history of polyps or cancer.
β Correct Answer: C. Multiple intestinal polyps