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Colorectal Case 24

Dr. Shiaw-Hooi Ho

Associate Professor of Medicine at the Department of Medicine, 

Universiti Malaya, Malaysia

 

Procedure Information


Scope: CF-HQ190L

Case Findings: A large anal submucosal lesion (HPE: hemorrhoid tissue)

Organ: Rectum

Patient information: 52 years old, Male

Medical history: Intermittent painless per rectal bleeding past 2 years; known ocular myasthenia gravis

1. WLI Observation

A large 20mm erythematous lesion was seen at around the dentate line upon scope retroflexion in the rectum.

2. WLI Observation

There was also internal hemorrhoid seen around this lesion.

3. NBI Observation

NBI examination revealed congested superficial vessels but the normal mucosal pattern with rounded meshed capillary pattern was preserved signifying the possibility of a submucosal lesion.

Overall Comment

This patient was referred to colorectal surgical team for endoanal ultrasound examination and further management. He underwent trans-anal resection and further hemorrhoidectomy. The histology revealed hemorrhoid with stromal hemorrhage. There was no other abnormal tissue seen. This case illustrated an atypical presentation of an internal hemorrhoid with stromal hemorrhage mimicking a submucosal tumor. Other differential could be thrombosed hemorrhoid but there was no complaint of pain in this patient.

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