1. Department of Specialized Surgery, Tokyo Medical and Dental University, Graduate School of Medicine and Dentistry, Tokyo 113‑8519, Japan
2. Department of Plastic and Reconstructive Surgery, Tokyo Medical and Dental University, Graduate School of Medicine and Dentistry, Tokyo 113‑8519, Japan
3. Department of Radiology, Tokyo Medical and Dental University, Graduate School of Medicine and Dentistry, Tokyo 113‑8519, Japan
4. Department of Pathology, Tokyo Medical and Dental University, Graduate School of Medicine and Dentistry, Tokyo 113‑8519, Japan