SONO case series: 35-year-old male patient with flank pain.

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.