1. Department of Radiology, Kawasaki Medical School, Kurashiki, Okayama 701‑0192, Japan
2. Department of Pathology, Kawasaki Medical School, Kurashiki, Okayama 701‑0192, Japan
3. Department of Dermatology, Kawasaki Medical School, Kurashiki, Okayama 701‑0192, Japan
4. Department of Breast and Thyroid Surgery, Kawasaki Medical School, Kurashiki, Okayama 701‑0192, Japan