Is the ipsilateral adrenal gland routinely removed during a radical nephrectomy for renal cell carcinoma?

Routine Adrenalectomy During Radical Nephrectomy

The ipsilateral adrenal gland should NOT be routinely removed during radical nephrectomy for renal cell carcinoma. Adrenalectomy should only be performed when preoperative imaging or intraoperative inspection reveals adrenal involvement, enlargement, or suspected metastasis 1, 2.

Evidence-Based Approach

When to Spare the Adrenal Gland

The most recent high-quality guidelines provide a strong recommendation against routine ipsilateral adrenalectomy 2. This is based on compelling evidence:

• Synchronous adrenal involvement is rare (2-3% of cases) 1, 3
• Modern imaging (CT/MRI) can reliably detect adrenal metastases preoperatively 1, 4
• Routine adrenalectomy provides no oncologic benefit - it does not improve cancer-specific survival or reduce risk of subsequent metastasis 3
• Unnecessary adrenalectomy places patients at risk for metastasis in a solitary remaining adrenal gland 3
• Unilateral adrenalectomy may cause irreversible impairment of adrenocortical reserve function 4

Specific Indications for Adrenalectomy

Perform adrenalectomy ONLY when:

1. Abnormal radiographic appearance of the adrenal gland on preoperative CT/MRI 1, 5, 6
2. Intraoperative findings suggest direct invasion or adrenal enlargement 1
3. Large upper pole tumors with radiographic concern 5, 7

Exception: A well-characterized non-functioning adenoma does not mandate surgical excision 1.

Clinical Decision Algorithm

For patients undergoing radical nephrectomy:

• Review preoperative imaging carefully for adrenal abnormalities
• If adrenal appears normal on imaging AND tumor is not directly invading → spare the adrenal gland 2
• If any suspicion of involvement → perform adrenalectomy for staging and potential therapeutic benefit 1
• Intraoperative assessment should guide final decision if preoperative imaging was equivocal 6

Important Caveats

The 2022 EAU guidelines provide the strongest evidence with a "strong" recommendation not to perform ipsilateral adrenalectomy without clinical evidence of invasion 2. This is echoed by the 2021 AUA guidelines, which explicitly state that adrenal involvement is "fortunately relatively uncommon" and the gland "can be spared in these patients without compromising oncologic outcomes" 1.

Research data consistently shows that even in high-risk patients, routine adrenalectomy does not improve outcomes 3. The risk of developing asynchronous adrenal metastasis is equivalent whether the ipsilateral adrenal is removed or not 3.

Bottom line: Adrenal-sparing surgery during radical nephrectomy is the standard approach unless there is specific evidence of adrenal involvement, preserving adrenal function without compromising cancer control.