case_images: PMC10868626_01
case_images: CT scan revealed a lesion suggestive of possibly cystic tissue
case_images: cureus-0016-00000052376-i01.jpg
case_images: PMC10868626_01_cureus-0016-00000052376-i01.jpg
case_images: FIG1
case_images: The CT scan, with intravenous contrast agent administration, revealed a lesion suggestive of possibly cystic tissue (Figure 1).
case_images: The MRI demonstrated a cystic lesion
case_images: cureus-0016-00000052376-i02.jpg
case_images: PMC10868626_01_cureus-0016-00000052376-i02.jpg
case_images: FIG2
case_images: The MRI, conducted with the administration of a paramagnetic substance, demonstrated an enlargement of the cystic lesion at eight months from 4.8 cm x 3.6 cm to 8.6 cm x 7.3 cm (Figure 2).
case_images: The images of the cystoscopy. (1) A lesion within the urinary bladder; (2) the anatomic site of the bladder trigone; (3) left lateral wall of the bladder; (4) right lateral wall of the bladder.
case_images: cureus-0016-00000052376-i03.jpg
case_images: PMC10868626_01_cureus-0016-00000052376-i03.jpg
case_images: FIG3
case_images: This alteration seems to extend from the posterior upper wall (Figure 3).
case_images: Image from the surgery
case_images: cureus-0016-00000052376-i04.jpg
case_images: PMC10868626_01_cureus-0016-00000052376-i04.jpg
case_images: FIG4
case_images: The patient underwent partial cystectomy with en bloc resection of the middle umbilical ligament and umbilicus and bilateral pelvic lymph node dissection (Figure 4).
case_images: The formulation for histological examination
case_images: cureus-0016-00000052376-i05.jpg
case_images: PMC10868626_01_cureus-0016-00000052376-i05.jpg
case_images: FIG5
case_images: The histological examination revealed mucin-producing adenocarcinoma (Sheldon staging pT3) originating from the urachus (Figure 5), based on the localization and immunomorphological characteristics.