system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
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:
assistant
The correct answer is  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 , Srb's manual of surgery 5e p993