In the staging of renal cell carcinoma, a tumour that extends through the renal capsule into the perirenal fat but remains confined within Gerota's fascia with no renal sinus invasion is classified as TNM stage:
- A T2b
- B T3a ✓
- C T3b
- D T2a
Correct answer: B. T3a
Explanation
According to AJCC 8th edition RCC staging, T3a includes tumours that invade the adrenal gland, renal sinus fat, or perirenal fat within Gerota's fascia, or tumours with renal vein or segmental (muscle-containing) branch invasion. A tumour extending through the renal capsule into perirenal fat within Gerota's fascia is T3a. T2 is confined to the kidney (T2a: 7–10 cm, T2b: >10 cm). T3b involves the main renal vein or its segmental branches up to the inferior vena cava below the diaphragm.
Reference: Bailey & Love's Short Practice of Surgery, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.