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+A 72-year-old woman underwent RF ablation for the treatment of a metachronous solitary liver metastasis from rectal adenocarcinoma, which had been treated 18 mo before with preoperative chemoradiotherapy and anterior resection.
+The lesion was located in segment VIII.
+The procedure went well and the patient was initially haemodynamically stable.
+One hour later her condition suddenly worsened.
+She was clinically dizzy and had fatigue and pallor.
+We detected hypotension and tachycardia.
+Emergency blood tests showed a haemoglobin level of < 7 g/dL and markedly elevated transaminase levels.
+A computed tomography examination revealed an accumulation of intraperitoneal fluid in the pelvis and two liver haematomas.
+The images showed two liver lacerations, one following the path of the needle (Figure ​(Figure1A1A-​-C)C) and another, unexplained laceration leading away from the first (Figure ​(Figure2).2).
+The patient had no serious coughing or hiccupping after the RF treatment, or any other complications that might have caused increased abdominal pressure and tumour rupture.
+Subsequently, the patient received a blood transfusion and close monitoring.
+She was haemodynamically stable after the second blood transfusion and completely recovered 24 h later.
+The patient remained in bed for 1 wk.
+No surgical intervention was required.