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Anal Fibroepithelial Polyp With Epithelial Vascular Pseudoinvasion
Giovanni Fellegara1, Nicoletta Di Mari1
1Centro Diagnostico Italiano, Milano, Italy.
International Journal of Surgical Pathology
|May 22, 2020
Summary
This case report details an anal fibroepithelial polyp exhibiting benign squamous cell vascular pseudoinvasion. This rare finding, observed in a patient with anal discomfort, highlights the importance of accurate histological interpretation.
Area of Science:
- Gastroenterology
- Pathology
- Surgical Oncology
Background:
- Anal fibroepithelial polyps are generally benign anorectal growths.
- Recurrent anal discomfort can be associated with various anorectal conditions.
- Accurate histological diagnosis is crucial for appropriate patient management.
Observation:
- A 38-year-old male presented with recurrent anal discomfort.
- Clinical examination identified two pedunculated anal polyps.
- Histological evaluation revealed one polyp with epithelial endovascular displacement and signs of traumatism.
Findings:
- The key finding was a benign anal fibroepithelial polyp.
- The polyp demonstrated epithelial vascular pseudoinvasion, mimicking malignancy.
- This represents the first reported case of this specific finding in an anal fibroepithelial polyp.
Implications:
- This case underscores the importance of differentiating pseudoinvasion from true invasion in polyp pathology.
- Understanding pathogenetic mechanisms is vital for accurate diagnosis and avoiding overtreatment.
- Further research may elucidate the specific factors leading to vascular pseudoinvasion in these polyps.
