Colonic filiform polyposis and a malignant adenomatous polyp

Area of Science:

• Gastroenterology
• Colorectal Surgery
• Pathology

Background:

• Pseudopolyposis can arise from various colonic conditions.
• Filiform polyps are an uncommon manifestation.
• Inflammatory bowel disease is a common precursor, but not always present.

Observation:

• A patient presented with pseudopolyposis characterized by filiform polyps in the transverse colon.
• An independent adenomatous polyp was identified in the sigmoid colon.
• The patient had no significant prior history of inflammatory bowel disease.

Findings:

• The filiform polyps in the transverse colon represented pseudopolyposis.
• The sigmoid adenomatous polyp exhibited focal malignant degeneration.
• The absence of inflammatory bowel disease history is noteworthy.

Implications:

• This case highlights the diverse presentations of colonic polyps.
• It underscores the importance of thorough colonoscopic evaluation, even without a history of inflammatory bowel disease.
• Recognizing filiform polyps as pseudopolyposis is crucial for accurate diagnosis and management.