<prompt> grey hack shunt is in priapism is betwee?dorsal vein and corpora cavernosumcorpora spongiosum and corpora cavernosumproximal penis between corpus cavernosum and saphaneous veincorpora cavernosum and spongiosum  <response>: Surgical treatment For priapism beyond 48-72 hrs Surgical shunt - to drain blood from cavernosa bypassing veno-occlusive mechanism Shunts - i.Distal cavernoglanular shunts- a Winter shunt : large biopsy needle through glans to cavernosa bEbbehoj shunt : scalpel though glans to cavernosa c El -Ghorab shunt :excision of tunica albugenia at tip of cavernosum c grey hack shunt : proximal penis between corpus cavernosum and saphaneous vein ref : bailey and love 27th ed 