A possible diagnosis of RDD should be kept in mind when encountering a patient with raised plasma creatinine levels and renal mass. Timely diagnosis and management of RDD will help prevent future kidney loss.
Keywords: MRI; PET/CT; Rosai‐Dorfman disease; case report; histiocytosis; renal.
© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.