Abstract
Emphysematous polycystic renal infection (EPRI) has a poor prognosis with conservative management, and early surgical nephrectomy has been recommended. However, percutaneous cyst drainage may be a possible treatment option. We experienced 6 patients with autosomal dominant polycystic kidney disease (ADPKD) presenting with EPRI. Three patients developed EPRI after renal transarterial embolization (TAE), and the other 3 developed EPRI independently of renal TAE. Two of the patients had only one cyst with gas formation, and the causative organism was sensitive to antibiotics; these patients were cured by cyst drainage and antibiotic therapy. However, in 3 patients with severe renal enlargement and gas formation in multiple cysts, the causative organism was antibiotic resistant and cyst drainage was not effective, so surgical nephrectomy was performed and the disease effectively treated. Surgical nephrectomy should be considered in patients with multiple cysts with gas formation and severe renal enlargement.