Diagnostic accuracy of MR imaging in clinically suspected pelvic masses in female: A prospective cross sectional study

Objective: Study was undertaken to evaluate the role of MRI in the evaluation of pelvic mass lesions, and performed clinico-pathological correlation. Methods: The Prospective cross-sectional study was conducted in 60 female patients who were clinically suspected to have pelvic mass lesions or detected with a pelvic mass incidentally on USG in the hospitals attached to Govt. Medical College, Kota during the period from December 2014 to December 2015. Final diagnosis were obtained by histopathological correlation in near all cases. The imaging results were then compared with the pathological results to determine the sensitivity and specificity of magnetic resonance imaging for the determination of the nature of mass. Results: Study was undertaken in 60 females age ranged between 11-75 years with mean age of 37.88 ± SD 15.5 in years. The 48 cases (80%) were benign and 12 cases (20%) were malignant. Most common lesions evaluated on imaging were uterine leomyoma. The maximum pelvic masses were arising from ovaries (56.67%). The consistency of masses was solid in 46.67% cases. The Sensitivity and Specificity of MRI in characterizing pelvic masses as benign was 97.92% and 91.67% respectively, and for malignant lesion 91.67% and 97.92% respectively. In diagnosing uterine mass, the values of Sensitivity and Specificity were 94.44% and 100% for benign and 100% & 94.44% for malignant respectively, In ovarian mass, 100% and 88.89% for benign and 88.89% & 100% for malignant ovarian masse respectively. All extrauterine and extraovarian mass cases were correctly diagnosed by MRI with 100% sensitivity and specificity. Conclusion: Magnetic resonance imaging was highly accurate in characterising the pelvic masses as benign and malignant.