A 66-years old man with history of pri anal pain & erythema



Doctor's Information

Name : Morteza
Family : Sanei Taheri
Affiliation :Radiology Department,Shohada Tajrish Hospital,SBMU
Academic Degree : Associate Professor of Radiology
Email : This email address is being protected from spambots. You need JavaScript enabled to view it.
Resident : Sahel babvey


Case Section

Uroradiology & Genital Male Imaging


Patient's Information

Gender : Male
Age : 66


Clinical Summary

A 66-years old man with history of pri anal pain & erythema


Imaging Findings

In left ischio anal area a collection with enhancement is seen wit extension in to ischio rectal & high rectal &presacral regions.  Also signal changes of internal obturator muscle is noted.RectUm & anal  sphinctre appear normal.


Differential Diagnosis



Final Diagnosis

ischio anal abscess


Discussion (Related Text)

Anorectal abscess (also known as an anal/rectal abscess, or perianal/perirectal abscess ) is an abscess adjacent to the anus.[1] It arises from an infection at one of the anal sinuses which leads to inflammation and abscess formation. Most cases of perianal abscesses are sporadic, though there are certain situations which elevate the risk for developing the disease, such as diabetes mellitus, Crohn's disease, chronic steroid treatment and others. Ischiorectal, inter- and intrasphincteric abscesses have been described.



1. "The Iris Cantor Women's Health Center - Anal Abscess and Fistula".


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