1. Department of Radiology, MRI-CT Unit, General Hospital-of Ioannina, Leof, Makrygianni, Ioannina, 45410 Greece.
2. Department of Radiology, University Hospital of Ioannina, Ioannina, Greece.
3. Department of Radiology, Miyazaki Shiminomori Hospital, Miyazaki, Japan.
4. Department of Pathology, Miyazaki Konan Hospital, Otsubo-Nishi, Miyazaki, Japan.
5. Department of Radiology, Miyazaki Konan Hospital, Otsubo-Nishi, Miyazaki, Japan.