Fig. 2. A liver transplant recipient demonstrating vitamin K-associated anti-tumor effect on isolated pulmonary metastasis. A 58 year-old female recipient had isolated lung metastasis 18 months after transplantation, thus sorafenib and vitamin K were administered for 30 months. (A) Since lung mass progressed slowly, sorafenib was discontinued due to disease progression and only vitamin K was administered for more than 12 months. (B) The patient is currently doing well without any serious symptom despite very slow tumor progression.