What procedure would likely be used to address the presence of bladder stones?

Cystolithotomy is the appropriate procedure for addressing the presence of bladder stones. This surgical technique involves making an incision in the bladder to directly access and remove the stones. It is typically performed when the stones are too large to pass naturally or if there are multiple stones that cause significant symptoms or complications, such as infection or obstruction.

In contrast, an ileal conduit refers to a type of urinary diversion where a piece of the ileum is used to create a stoma for urine to exit the body. This is not a direct treatment for bladder stones but rather a procedure for patients who may require removal of the bladder or have severe bladder dysfunction.

Nephrectomy, the surgical removal of a kidney, does not directly relate to the treatment of bladder stones either. It is typically performed in cases of kidney disease, tumors, or severe trauma, rather than issues within the bladder.

Hydrocelectomy, the surgical removal of a hydrocele (a fluid-filled sac around the testicle), is unrelated to bladder stones and only pertains to the male reproductive system.

Thus, cystolithotomy is the definitive surgical option to directly address and remove bladder stones, making it the correct choice in this scenario.