Active surveillance in localized prostate cancer: comparison of incidental tumours (T1a/b) and tumours diagnosed by core needle biopsy (T1c/T2a): results from the HAROW study.

Urologists are highly inclined to use AS as a therapeutic option in IPCa. More patients with IPCa than those diagnosed after core needle biopsy continued on AS, which was also associated with the indication for a re-biopsy being less stringently observed.