PMC7875086_01
MRI of a mass located at midline cranial to the bladder apex, of urachal cyst (withe arrow: urachal cyst; red star: tubo-ovarian abscess; U: uterus).
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MRI confirmed the suspicion of a left tubo-ovarian abscess and suggested a diagnosis of urachal remnant for the smaller midline cyst (Fig. 1).
Intra-operative image of urachal cyst (red star: urachal cyst; RS: Retzius space).
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Then, after lateral access to the Retzius space, a 3-cm pre-peritoneal cystic mass consistent with a cyst of the lower urachus was detected (Fig. 2).