Fig. 1

Abdominal computed tomography (CT) one year before (upper left panel), on admission (upper middle panel), 25 days later (upper right panel), 3 months later (lower left panel) and 6 months later (lower middle panel). Abnormal CT on admission showed a large tumor with calcification in the pelvis which was observed in abdominal CT one year before. Its size is as large as 65 mm in diameter (upper middle panel). Its tumor size was gradually reduced 25 days later (upper right panel), 3 months later (lower left panel) and 6 months later (lower middle panel) compared to that on admission (upper middle panel), but the tumor did not disappear completely even 6 months later. The arrows show the tumor which reduced in size at time course