Accuracy of ultrasound, magnetic resonance imaging and
intraoperative frozen section in the diagnosis of ovarian
tumors: data from a London tertiary centre
Sometimes it can be difficult to differentiate between benign and malignant masses found in the ovary. For best management of ovarian tumors, it is crucial to identify cancer before surgery so that the correct technique can be used.
This study looked at 156 ovarian masses which were surgically removed. The final diagnosis, obtained by pathological examination was compared to the pre-operative diagnosis obtained by ultrasound MRI or intraoperative frozen section.
Results from the study showed that frozen section was the best at determining the presence of borderline and malignant tumors. Ultrasound and MRI have high specificity at diagnosing benign tumors but both these modalities have low predictive values when diagnosing borderline or malignant pathology.
The inference from this study is that pre-operative diagnosis is unreliable and that frozen section tissue analysis is required for best management.
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