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Fig. 15 17-year-old boy with infected urachal cyst who presented with
right lower quadrant pain and chills. Transverse helical CT with IV and oral
contrast shows heterogeneous soft-tissue mass (arrow) contiguous with
the anterior bladder wall with irregular enhancing wall and adjacent
soft-tissue stranding. Two punctate foci of calcification (arrowhead)
are visible within left aspect of wall. Patient was treated with antibiotics
and subsequent imaging showed improvement in inflammatory stranding.