[Vanek's tumor as an uncommon cause of digestive bleeding]

Sergio Morínigo1, Maisa Vallejos1, Sebastián Díaz Duba1

  • 1Departamento de Gastroenterología y Endoscopía Digestiva, Hospital de Clínicas, San Lorenzo, Paraguay.

Insights

Vanek's polyp, a rare gastrointestinal lesion, presents with inflammation and vascular changes, mimicking adenomas. Accurate diagnosis is crucial for appropriate management of this uncommon finding.

Area of Science:

  • Gastroenterology
  • Pathology

Background:

  • Gastrointestinal polyps range from benign to malignant.
  • Vanek's polyp is a rare inflammatory lesion often misdiagnosed as adenomatous.

Observation:

  • A 77-year-old woman presented with rectal bleeding due to a pedunculated polyp.
  • Colonoscopy revealed and resected the polyp.
  • Histopathology showed lymphoplasmacytic infiltrate and vascular changes without atypia.

Findings:

  • Immunohistochemistry revealed CD34+ vessels and vimentin+ mesenchymal cells.
  • These findings aid in differentiating Vanek's polyp from inflammatory fibroid polyps.

Implications:

  • Accurate diagnosis of Vanek's polyp is essential for patient management.
  • Increased identification of Vanek's polyps may be linked to improved diagnostic techniques.

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