Abstract

Objectives: The aim of our study to evaluate the diagnostic accuracy of magnetic resonance imaging (MRI) in perianal fistula in relation to the operative findings and classify the types of fistula. 

Materials and Methods: A Prospective observe of 40 individuals with suspected fistula in ano, primary or recurrent, who had visited surgery department, Rajah Muthiah Medical College, Annamalai University, Chidambaram between October 2015 to September 2017 and the consequences have been analyzed.

Results: 1) Based on my study perianal fistula commonly seen in men of age group 41-50 years. 2) Grade IV fistula is common (25%) followed by Grade III (22.5%) and Grade II (17.5%) fistula. 

Conclusion: Perianal fistula is more commonly seen in men of age group 41 to 50 years. Surprisingly, the most common type of Perianal fistula in our examine patients is Grade IV fistula (25%) followed by Grade III (22.5%) and Grade II (17.5%) fistulas. The delayed presentation with Grade IV fistula in our study population highlights the social taboos precluding the individuals from searching for timely medical help and thereby signifies importance of medical awareness. MRI is useful in a success treatment of perianal fistulae by reliable assessment of fistula anatomy and correct evaluation of the extent of the condition and its relation to the sphincters.

Keywords: Perianal fistula; Anal canal; Levator ani, MR fistulogram.