PMC3580896_01
(a) Thickened wall cyst and horseshoe kidney. (b) Drainage of the cyst.
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fig1
An incidental finding was the existence of horseshoe kidney (Figure 1).  A widely spectrum antibiotic (Piperacillin/tazobactam) was administered intravenously and a CT-guided percutaneous drainage of the cyst was decided. 1200 mL pus was aspirated and two drainage tubes were left in place (Figure 1).
(a) Bowel-like cyst with no connection with the gastrointestinal tract. (b) Retroperitoneal attachment of the cyst. (c) Feeding vessels to the cyst. (d) The excised cyst.
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fig2
At laparotomy there was a bowel-like mass, measuring 7 x 4 cm in size, that did not connect with the gastrointestinal tract and its mesentery (Figure 2).