<prompt> A 40-yr-old patient with a single kidney presents with a solitary exophytic mass of 4 cm localized at its lower pole. Which amongst the following is the best-recommended management option:Radical nephrectomyRadical nephrectomy with dialysisRadical nephrectomy with renal transplantationPaial nephrectomy  <response>: Paial nephrectomy is the preferred surgical approach for a small 4cm localized tumor; especially in patients with a functionally or anatomically solitary kidney. Paial nephrectomy should be considered in the following clinical situations: Renal masses less than 4cm T1 Localized mass in a patient with a single kidney or with compromised renal function. Synchronous bilateral renal tumors Patients with Von-Hippel-Lindau syndrome as they are at high risk of renal cancer in the contralateral kidney Ref Bailey and love 27e Kidney and ureter , Srbs manual of surgery 5e p993 