Enlarging Bilateral Perinephric Masses in Nephrotic Syndrome.
Jin Jiang, Tingting Yuan, Tingfei Gu et al.
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From the abstract
A 62-year-old man with biopsy-proven focal segmental glomerulosclerosis presented with nephrotic syndrome and enlarging bilateral perinephric masses. Contrast-enhanced CT showed large low-density lesions surrounding and compressing both kidneys, raising concern for retroperitoneal malignancy.