Fig. 1B.49-year-old man with history of Riedel's thyroiditis. CT of
abdomen after contrast agent administration shows hydronephrosis of left
kidney that enhances to lesser degree than normal right kidney. There is
diffuse renal parenchymal infiltration by minimally enhancing mass.
Fig. 1C.49-year-old man with history of Riedel's thyroiditis. CT of
abdomen after contrast agent administration shows hydronephrosis of left
kidney that enhances to lesser degree than normal right kidney. There is
diffuse renal parenchymal infiltration by minimally enhancing mass.