The enlarged prostatę gland seen here not only has enłaracd lateral lobes. but also a areath enlarged median lobe that obstructs the prostalic urethra This led to obstruction with bladdcr h>pertroph>. as eudenced by the prominent trabeculation ot'the bladder wali seen here trom the mucosal surtaee (Obstruction with stasis also led to the formation ot'the yeUow-brown calculus (stonc).