Unmasking of Urinary-pubic Symphysis Fistula After Implantation of Artificial Urinary Sphincter in Prostate Cancer Survivors-User Beware

Unmasking of occult UPF resulted in rapid clinical decline after AUS implantation. Increased intravesical filling pressure from increased urethral resistance likely resulted in opening of occult fistula tracts. UPF should be in the differential diagnosis if there is history of radiotherapy or urethral instrumentation. An underlying and undiagnosed UPF may lead to grave consequences after AUS implantation.