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SONO case series: 35-year-old male patient with flank pain
  1. William Shyy1,
  2. Roneesha Knight2
  1. 1 Emergency Medicine, University of California San Francisco, San Francisco, California, USA
  2. 2 Emergency Medicine, Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, California, USA
  1. Correspondence to Dr William Shyy, Emergency Medicine, UCSF, Pacifica, CA 94044, USA; william.shyy{at}


The diagnosis and management of obstructing nephrolithiasis by emergency physicians has undergone great advancements in the past few years. No longer do all patients with suspected renal colic need a CT scan and an immediate urology consult. In this case presentation, we present a classic case of obstructing nephrolithiasis along with the associated point-of-care ultrasound images. We will walk with the reader through a series of questions and answers discussing the patient’s diagnosis based on the most current evidence-based recommendations.

  • renal
  • imaging
  • ultrasound
  • diagnosis

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  • Contributors WS and RK have both provided substantial contributions to the conception or design of this manuscript and drafting and revising the manuscript. Both provided final approval to the submitted manuscript. Both agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Patient consent for publication Not required.