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British Journal of Radiology (1994) 67, 596-598
© 1994 British Institute of Radiology
doi: 10.1259/0007-1285-67-798-596
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Cachexia of the kidney—a cause of pseudo-hydronephrosis

R P Kedar, MD, DMRD 1 C D Collins, MRCP, FRCR 2 and D O Cosgrove, MRCP, FRCR 1,*

1 Department of Ultrasound, The Royal Marsden Hospital and The Institute of Cancer Research, Downs Road, Sutton, Surrey SM2 5PT, UK 2 Department of Radiology, The Royal Marsden Hospital, Fulham Road, London SW3 6JJ, UK

Various pitfalls in diagnosing early hydronephrosis on ultrasound (US) have been recognized. We present a case where the appearances on US mimicked bilateral hydronephrosis in a patient undergoing treatment for recurrent colonic carcinoma. Comparison with a previous ultrasound examination demonstrated marked loss of renal sinus fat. Doppler studies demonstrated normal venous flow within each portion of the "dilated collecting system". In oncology, renal cachexia should be remembered as one of the causes of pseudo-hydronephrosis.

* Current address: Department of Radiology, Hammersmith Hospital, Du Cane Road, London W12 ONN, UK.

Received for publication November 15, 1993. Accepted for publication January 11, 1994.






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