Idiopathic Retroperitoneal Fibrosis Involving a Unilateral Renal Sinus: A Case Report and Literature Review
Idiopathic retroperitoneal fibrosis (RPF) is a rare disease entity and its etiology is uncertain.We report two similar cases which showed an uncommon presentation of idiopathic RPF.A 66-year-old woman and an 80-year-old man presented with incidental findings of left renal pelvic mass-like lesions.Computed tomography revealed a soft tissue density G