Fig. 4
From: MR-guided percutaneous microwave coagulation of small breast tumors
a Preoperative positioning and preparation. b Macroscopic evaluation of the treatment zone before surgical resection (white arrow = tumoral ablation zone; black arrow = breast fat around the ablation zone). c Macroscopic evaluation of the treatment zone on the specimen (white arrow = tumoral necrosis zone; black arrow = ablation zone of peritumoral breast fat, approximately 0.5–1.0 cm in size). The blue arrow indicates the hyperemic ring around the ablated area