Magnetic Resonance Imaging in sonographically indeterminate adnexal masses

Salam M. Joori, Atheer Adnan Fadhil, Wassen M. Abdullateef, Maysoon M. Jabir
In: Journal of the Faculty of Medicine Baghdad · 2016 · vol. 57(4) , pp. 273–278 · doi:10.32007/jfacmedbagdad.574389 · W4321842673
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⚙ AI-generated summary by claude@2026-06, 2026-06-09 ⓘ

This study found that MRI accurately characterized sonographically indeterminate adnexal masses, with 98% agreement on origin and 91% on tissue characteristics, predominantly identifying benign conditions like endometriosis.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-10 · read from full text ⓘ

This prospective study assessed the ability of pelvic MRI to characterize sonographically indeterminate adnexal masses in 89 cases, comparing MRI results with final diagnoses determined by histopathological and surgical findings. Among these masses, benign conditions accounted for 87.6% and malignant for 12.4%, with endometriosis as the most common benign cause (22.4%), followed by mature cystic teratoma and pedunculated fibroid (18% and 15.7%). The paper reports excellent agreement between MRI and final diagnosis for determining the mass origin (98%) and tissue characteristics (91%), and it frames MRI as an appropriate further evaluation when ultrasound is hindered (e.g., obesity), though detailed limitations beyond this are not provided. This paper is centrally about endometriosis — it identifies endometriosis as the most common etiology among sonographically indeterminate adnexal masses and quantifies its representation using MRI characterization.

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Abstract

Background: Although ultrasonography (US) continues to be the primary imaging modality used to identify and characterize adnexal masses, but certain conditions that hinder accurate ultrasound examination, such as obesity, may be indications for magnetic resonance (MR) imaging, for the assessment of complex and indeterminate ovarian masses.Objective: to assess the ability of MRI to characterize sonographically indeterminate adnexal masses.Patients and methods: A prospective study of 89 cases with sonographically indeterminate adnexal mass underwent pelvic MRI conducted in X-ray institute in medical city in Baghdad during period from October 2011 to January 2013 & the results compared to the final diagnosis which was determined by histopathological & surgical findingsResults: Most sonographyically indeterminate adnexal masses result from common benign condition. Benign conditions account for 87.6%, while malignant condition account for 12.4%. Endometriosis was the commonest cause constitute (22.4 %), followed by mature cystic teratoma , and pedunculated fibroid (18%) and (15.7%) respectively. Excellent agreement was noted between MRI and final diagnosis for determining the origin and tissue characteristics which are 98% and 91% respectively.Conclusion: Sonographically indeterminate adnexal masses of uncertain origin and solid or complex content will benefit from further evaluation with MRI, which is highly accurate for identifying the origin of the mass and characterizing its tissue contents playing an important role in planning the way of management.
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Background

Although ultrasonography (US) continues to be the primary imaging modality used to identify and characterize adnexal masses, but certain conditions that hinder accurate ultrasound examination, such as obesity, may be indications for magnetic resonance (MR) imaging, for the assessment of complex and indeterminate ovarian masses.

Objective

to assess the ability of MRI to characterize sonographically indeterminate adnexal masses. Patients and methods: A prospective study of 89 cases with sonographically indeterminate adnexal mass underwent pelvic MRI conducted in X-ray institute in medical city in Baghdad during period from October 2011 to January 2013 & the results compared to the final diagnosis which was determined by histopathological & surgical findings

Results

Most sonographyically indeterminate adnexal masses result from common benign condition. Benign conditions account for 87.6%, while malignant condition account for 12.4%. Endometriosis was the commonest cause constitute (22.4 %), followed by mature cystic teratoma , and pedunculated fibroid (18%) and (15.7%) respectively. Excellent agreement was noted between MRI and final diagnosis for determining the origin and tissue characteristics which are 98% and 91% respectively.

Conclusion

Sonographically indeterminate adnexal masses of uncertain origin and solid or complex content will benefit from further evaluation with MRI, which is highly accurate for identifying the origin of the mass and characterizing its tissue contents playing an important role in planning the way of management.

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