Aim: The aim of the present study was to compare MRI findings to intraoperative findings in patients of Fistula in ANO.

Methods: The study was conducted over a period of 18 months in the Department of Surgery, Mamata Medical College, Khammam. All cases of Fistula in Ano confirmed by clinical and radiological parameters were admitted in Department of Surgery. 50 patients were included in the study. Prior to initiation of study institutional ethical committee approval and informed consent from the patient/legal guardian after the full explanation of research protocol were taken.

Results: Out of 60 patients admitted, position of external opening of fistula tract was anterior to transverse line in 42 (70%) patients. In 18 (30%) patients position of external opening was posterior to transverse line. Out of 60 patients admitted, position of external opening of fistula tract within 3cm distance from anal verge was seen in 48 (80%) patients. In 12 (20%) patients position of external opening was >3cm distance from anal verge. Out of 60 patients admitted, 54 (90%) patients had single external opening of fistula tract and 6 (10%) patients had multiple external openings of fistula tract. Out of 60 patients, in 46 patients correlation was seen between MRI finding and Intraoperative finding in Fistula in Ano. No correlation was seen between the MRI finding and Intraoperative finding in 14 patients.