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Related Experiment Video

Updated: Jun 14, 2025

Application of Microwave Ablation in Laparoscopic Partial Splenectomy
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Postpolypectomy Bleeding Gone Wrong: Primary Colonic Epithelioid Angiosarcoma.

Rishi Bolla1, Carolina Martinez2, David Metter3

  • 1Department of Internal Medicine, Division of Digestive Diseases and Nutrition, University of South Florida, Morsani College of Medicine, Tampa, FL.

ACG Case Reports Journal
|August 29, 2024
PubMed
Summary
This summary is machine-generated.

A rare epithelioid angiosarcoma of the colon presented as postpolypectomy bleeding in a 60-year-old man. This case highlights unique initial symptoms and successful treatment with segmental resection, leading to cancer-free survival.

Keywords:
angiosarcomableedingcolon cancerpolypectomy

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Area of Science:

  • Gastroenterology
  • Surgical Oncology
  • Pathology

Background:

  • Epithelioid angiosarcoma is a rare and aggressive vascular tumor.
  • Primary colonic angiosarcomas are exceptionally uncommon, posing diagnostic challenges.

Observation:

  • A 60-year-old male presented with symptoms mimicking postpolypectomy bleeding.
  • Repeat endoscopy revealed epithelioid angiosarcoma of the transverse colon.
  • Imaging confirmed the colon as the primary tumor site.

Findings:

  • The patient underwent successful segmental resection of the affected colon segment.
  • The tumor's initial presentation as postpolypectomy bleeding is a unique clinical feature.
  • The patient achieved continued cancer-free survival following limited surgical intervention.

Implications:

  • This case expands the understanding of rare colonic malignancies.
  • It underscores the importance of thorough investigation for persistent post-procedural bleeding.
  • The successful outcome suggests that limited surgery may be effective for select cases of colonic epithelioid angiosarcoma.