Fig. 10

Pelvic alveolar echinococcosis in a 28-year-old woman with chronic pelvic pain, bladder disorder, and dyspareunia. a Sagittal and (b) axial T2-W MR images show an infiltrative T2-hypointense external myometrial infiltrative mass (thick arrows) with a few microcysts (arrowheads), and a contiguous infiltration of the bladder dome (thin arrows). c Axial T1-W fat-suppressed MR image shows several microcysts (arrowheads) without hemorrhagic foci in the extrinsic infiltrative uterine mass. d Axial T1-W fat-suppressed contrast-enhanced subtracted MR image shows central necrosis (arrows) and irregular margin with a peripheral enhancement. History of liver alveolar echinococcosis infection in childhood was then found