Figure 2: Pelvic MRI: In the midline, a solid 8.2 cm mass is observed, centered on the bladder dome, with thick walls and local involvement to the anterior abdominal wall, and deep layers of the anterior abdominal muscles and to the bladder dome. This may correspond, due to the topography, to an invasive bladder tumor or alternatively to an urachal abscess or urachal malignancy.