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. 2021 Sep 1;41(5):1368–1386. doi: 10.1148/rg.2021200207

Figure 16a.

Spectrum of urachus-origin cystic lesions. (a) Urachal sinus in a 44-year-old man with sanguineous fluid draining from the umbilicus. Sagittal CT image shows a fluid-filled tubular structure (arrow) just deep to the anterior abdominal wall, extending from the umbilicus (arrowhead) to the bladder dome (*). (b) Urachal adenocarcinoma arising in a urachal diverticulum in a 57-year-old man. Sagittal T2-weighted image shows a large heterogeneous cystic mass (arrow) just deep to the anterior abdominal wall, which exerts mass effect on the bladder dome (*). (See Fig E10 for additional images.)

Spectrum of urachus-origin cystic lesions. (a) Urachal sinus in a 44-year-old man with sanguineous fluid draining from the umbilicus. Sagittal CT image shows a fluid-filled tubular structure (arrow) just deep to the anterior abdominal wall, extending from the umbilicus (arrowhead) to the bladder dome (*). (b) Urachal adenocarcinoma arising in a urachal diverticulum in a 57-year-old man. Sagittal T2-weighted image shows a large heterogeneous cystic mass (arrow) just deep to the anterior abdominal wall, which exerts mass effect on the bladder dome (*). (See Fig E10 for additional images.)