Background: Non-puerperal uterine inversion is a rare condition with diagnostic and surgical challenges. Clinically, the inverted uterus appears as a mass protruding from the vagina and is often misdiagnosed as a malignant tumor and surgically removed.
Case: An 11-year-old girl was admitted to the emergency room due to spontaneous vaginal mass protrusion. The pudendum examination showed an irregular and dark red neoplasm protruding from the vagina. The final diagnosis was non-puerperal uterine inversion with an endometrial polyp.
Summary and conclusion: MRI is the key to the diagnosis of uterine inversion. Our review confirmed that the 11-year-old girl was the youngest in the world to suffer from non-puerperal uterine inversion.
Keywords: Endometrial polyp; Magnetic resonance imaging (MRI); Uterine inversion.
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