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Black Anal Canal: Acute Necrosis
Sandra Barbeiro1, Catarina Martins1, Cláudia Gonçalves1
1Department of Gastroenterology, Centro Hospitalar de Leiria, Leiria, Portugal.
Annals of Coloproctology
|September 15, 2016
Summary
Spontaneous anal canal necrosis is rare due to good blood supply. This case highlights hypoperfusion as a likely cause in an elderly patient with atherosclerotic disease, with successful surgical debridement and recovery.
Area of Science:
- Gastroenterology
- Vascular Surgery
- Geriatric Medicine
Background:
- Acute ischemia leading to necrosis of the rectum or anal canal is exceptionally rare.
- Both the rectum and anal canal possess robust blood supply networks, typically preventing such events.
Purpose of the Study:
- To report a unique case of spontaneous anal canal necrosis without rectal involvement.
- To explore the potential etiology of this rare condition in an elderly patient.
Main Methods:
- Case presentation of a spontaneous anal canal necrosis.
- Surgical debridement of necrotic tissue.
- Clinical assessment including patient history and physical examination.
Main Results:
- Uneventful recovery following surgical debridement.
- The patient was elderly with probable atherosclerotic arterial disease and presented with hypotension.
- Hypoperfusion was identified as the most probable cause due to the absence of other precipitating factors.
Conclusions:
- Spontaneous anal canal necrosis is an extremely uncommon condition.
- Hypoperfusion, potentially linked to atherosclerotic disease, is a plausible cause in susceptible individuals.
- This case represents a novel occurrence in the medical literature, emphasizing the importance of considering vascular compromise in anal pathologies.