Fig. 2From: Ossifying metaplasia of urothelial metastases: original case with review of the literatureFollow-up CT performed 1 year after surgery (a) shows a small calcified nodule (white arrow) in the right retroperitoneal space. 6 months later (b) the calcified mass has increased in size. On another control 6 (c) months later the ossification progressed in size and into the adjacent vertebra (black arrow)Back to article page