“Malignant” Perivascular Epithelioid Cell Neoplasm: Risk Stratification and Treatment Strategies

Table 4

Comparison of original and revised Folpe criteria in risk stratification.

Risk category	Recurrence following resection
Benign	0/4 (0%)	1/46 (2.2%)
Uncertain
Malignant	No cases	3/22 (13.6%)
Potential
Malignant	31/68 (45.5%)	21/30 (70%)