PMC6354553_01
Radiological findings. (A,B) abdominal ultrasound; (C,D) abdominal CT scan with contrast.
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F1
Abdominal ultrasound demonstrated an enlarged left kidney with grade 3 hydroureteronephrosis and highly reflective echoes consistent with the presence of gas, suggestive of EPN (Figures 1A,B). An abdominal CT scan with contrast confirmed the diagnosis of unilateral EPN and showed an enlarged, hydronephrotic left kidney with discrete amounts of gas in the pelvis, lower calyceal group, and renal parenchyma (Class 2) EPN according to the Huang and Tseng classification (Figures 1C,D).