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Infantile hypertrophic pyloric stenosis: Does size really matter?

Authors

  • Peter Hsu,

    1. Discipline of Paediatrics, Sydney Medical School-Nepean, The University of Sydney, Kingswood, New South Wales, Australia
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  • Jan Klimek,

    1. Discipline of Paediatrics, Sydney Medical School-Nepean, The University of Sydney, Kingswood, New South Wales, Australia
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  • Ralph Nanan

    Corresponding author
    1. Discipline of Paediatrics, Sydney Medical School-Nepean, The University of Sydney, Kingswood, New South Wales, Australia
    • Professor Ralph Nanan, Sydney Medical School-Nepean, The University of Sydney, Derby Street, Kingswood, NSW 2747, Australia. Fax: (02)47342561; email: ralphn@med.usyd.edu.au

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Abstract

Pyloric stenosis is a common infantile disorder typically occurring between 2 weeks and 8 weeks of age. Presentation outside this range and in premature infants is uncommon and often atypical. We present three cases, a pair of premature twins and a 5.5-month-old infant with pyloric stenosis. We highlight that despite their difference in size and weight, ultrasound examination remains a reliable diagnostic tool. However, pyloric measurements should be interpreted in combination with the other dynamic features on ultrasound.

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