| name | ata-ppgl-surgical-approach-selection |
| description | Selects surgical approach for pheochromocytoma and paraganglioma resection based on tumor size, invasion suspicion, metastatic status, and familial bilateral risk when a clinician asks 'What surgical approach should I use for this pheochromocytoma patient?' Triggers include confirmed PPGL requiring surgical intervention. |
Select surgical approach for pheochromocytoma and paraganglioma resection
STEP 1 — Gather Information
Collect tumor size (cm) via CT/MRI, assess for local invasion (vascular/organ adhesion), perform metastatic workup (imaging for distant metastases), evaluate genetic/family history (bilateral risk), determine laterality (unilateral/bilateral), and ensure preoperative α-blockade adequacy.
STEP 2 — Rule In / Rule Out
Is tumor ≤6 cm with no radiographic evidence of invasion? If yes, proceed to laparoscopic or robot-assisted adrenalectomy; if no, proceed to open adrenalectomy.
STEP 3 — Classify or Stratify
For laparoscopic/robot-assisted pathway: Is there a familial syndrome (e.g., VHL, RET, NF1) with high bilateral risk and tumor ≤5 cm? If yes, consider partial (cortical-sparing) adrenalectomy; if no, proceed with total laparoscopic adrenalectomy. For open surgery pathway: Is metastatic disease present? If yes, consider primary tumor resection (debulking) even in metastatic PPGL; if no, proceed with open adrenalectomy for curative intent.
STEP 4 — Decide
Choose laparoscopic/robot-assisted total adrenalectomy for small non-invasive sporadic tumors; laparoscopic/robot-assisted partial adrenalectomy for small tumors in familial bilateral risk; open total adrenalectomy for large/invasive tumors; open adrenalectomy with debulking intent for metastatic disease.
Clinical Guardrails / Mimics / Pitfalls
Do not proceed to surgery without adequate α-blockade; avoid laparoscopic approach for tumors >6 cm or suspected invasion; do not perform partial adrenalectomy without genetic counseling and surgical expertise; do not omit primary tumor resection in metastatic PPGL; avoid delaying surgery for metastatic workup beyond necessary.
Concrete Clinical Example
A 45-year-old patient with VHL mutation presents with a 3 cm left adrenal tumor, no invasion on imaging, no metastases, and high bilateral risk. Genetic testing confirms VHL. Laparoscopic partial (cortical-sparing) adrenalectomy is selected to preserve adrenal cortex function.
Source: Japan Endocrine Society Clinical Practice Guideline for the Diagnosis and Management of Pheochromocytoma and Paraganglioma 2025, Japan Endocrine Society, 2025, doi:10.1507/endocrj.EJ25-0165
