OBJECTIVES: The aim was to report ultrasound (US) patterns of hepatocyte nuclear factor (HNF1β) mutation throughout childhood and determine whether ultrasound could be predictive of renal failure. METHODS: The sonographic examinations in 34 children with HNF1β mutation were reviewed. Their sonographic characteristics were compared with renal function. RESULTS: At first postnatal examination renal length was normal in 44 % of the patients, decreased in 24 %, increased in 12 % and asymmetrical in 20 %. Renal cortex was hyperechoic in 97 %. Corticomedullary differentiation was abnormal in 59 %. Cysts were present in 77 % of patients. Cysts were mostly subcapsular (64 %). Twenty-eight patients had follow-up examinations. A modification of the sonographic appearance was observed in 91 % of patients. Eight patients (23 %) had renal failure; no specific US pattern could be demonstrated. CONCLUSIONS: At birth, HNF1β mutation was typically associated on US with the combination of hyperechoic, normal-sized kidneys with abnormal corticomedullary differentiation (CMD) and multiple cortical cysts. In older children, the appearances can be variable: kidneys may have decreased (32 %) or normal size (33 %); they are usually hyperechoic (50 %) with abnormal CMD (78 %) and (sub)cortical cysts (71 %). No pattern appears to be associated with renal failure. KEY POINTS: • HNF1β mutations determine significant anomalies of sonographic appearances of kidneys in children. • Kidneys appear mainly hyperechoic, with or without CMD and with subcapsular cysts. • The US pattern may evolve throughout childhood in the same patient. • No correlation was found between any sonographic pattern and renal failure.
OBJECTIVES: The aim was to report ultrasound (US) patterns of hepatocyte nuclear factor (HNF1β) mutation throughout childhood and determine whether ultrasound could be predictive of renal failure. METHODS: The sonographic examinations in 34 children with HNF1β mutation were reviewed. Their sonographic characteristics were compared with renal function. RESULTS: At first postnatal examination renal length was normal in 44 % of the patients, decreased in 24 %, increased in 12 % and asymmetrical in 20 %. Renal cortex was hyperechoic in 97 %. Corticomedullary differentiation was abnormal in 59 %. Cysts were present in 77 % of patients. Cysts were mostly subcapsular (64 %). Twenty-eight patients had follow-up examinations. A modification of the sonographic appearance was observed in 91 % of patients. Eight patients (23 %) had renal failure; no specific US pattern could be demonstrated. CONCLUSIONS: At birth, HNF1β mutation was typically associated on US with the combination of hyperechoic, normal-sized kidneys with abnormal corticomedullary differentiation (CMD) and multiple cortical cysts. In older children, the appearances can be variable: kidneys may have decreased (32 %) or normal size (33 %); they are usually hyperechoic (50 %) with abnormal CMD (78 %) and (sub)cortical cysts (71 %). No pattern appears to be associated with renal failure. KEY POINTS: • HNF1β mutations determine significant anomalies of sonographic appearances of kidneys in children. • Kidneys appear mainly hyperechoic, with or without CMD and with subcapsular cysts. • The US pattern may evolve throughout childhood in the same patient. • No correlation was found between any sonographic pattern and renal failure.
Authors: Coralie Bingham; Sian Ellard; Trevor R P Cole; Katrin E Jones; Lisa I S Allen; Judith A Goodship; Timothy H J Goodship; Daniela Bakalinova-Pugh; Gavin I Russell; Adrian S Woolf; Anthony J Nicholls; Andrew T Hattersley Journal: Kidney Int Date: 2002-04 Impact factor: 10.612
Authors: Fred E Avni; Catherine Garel; Marie Cassart; Nicky D'Haene; Michele Hall; Michael Riccabona Journal: AJR Am J Roentgenol Date: 2012-05 Impact factor: 3.959
Authors: Shazia Adalat; Adrian S Woolf; Karen A Johnstone; Andrea Wirsing; Lorna W Harries; David A Long; Raoul C Hennekam; Sarah E Ledermann; Lesley Rees; William van't Hoff; Stephen D Marks; Richard S Trompeter; Kjell Tullus; Paul J Winyard; Janette Cansick; Imran Mushtaq; Harjeeta K Dhillon; Coralie Bingham; Emma L Edghill; Rukshana Shroff; Horia Stanescu; Gerhart U Ryffel; Sian Ellard; Detlef Bockenhauer Journal: J Am Soc Nephrol Date: 2009-04-23 Impact factor: 10.121