A hyperechoic bladder-ring appearance as pathognomonic finding for emphysematous cystitis – A case report and literature review

An emphysematous cystitis s a rare urinary tract infectious disease and fatal unless any treatments. The case was a 97-year-old female presented with knee pain after falling with co-existence of macroscopic hematuria and pyuria. The ultrasonography examined on the same day showed a hyperechoic bladder-ring appearance bordering bladder wall which was re-was re-confirmed by computed tomography by air bubble collection on the circumferential bladder wall. We conclude and emphasize as the leaning point that emphysematous cystitis is raised as a differential diagnosis when ultrasonography showed the pathognomonic as hyperechoic bladder-ring appearance bordering bladder wall.