A 50-year-old woman undergoes Simpson Grade 1 resection of a convexity meningioma. Which of the following best describes this extent of resection?
- A Complete macroscopic tumor removal with excision of dural attachment ✓
- B Complete macroscopic tumor removal with coagulation of dural attachment
- C Complete macroscopic tumor removal without resection or coagulation of dural attachment
- D Subtotal removal leaving residual tumor
Correct answer: A. Complete macroscopic tumor removal with excision of dural attachment
Explanation
The Simpson grading system for meningioma resection predicts recurrence. Grade 1 is complete removal including the dural attachment and any abnormal bone. Grade 2 is complete removal with coagulation of the dural attachment. Grade 3 is complete removal without resection or coagulation of dural attachment. Grade 4 is subtotal resection. Grade 1 has the lowest recurrence rate (approximately 9% at 10 years).
Reference: Bailey and Love's Short Practice of Surgery, 28th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.