About Jeff Riddell, MD

Assistant Professor of Clinical Emergency Medicine
Co-Director, Medical Education Fellowship
LA County + USC Emergency Medicine Residency, Department of Emergency Medicine
Keck School of Medicine of the University of Southern California

Diagnose on Sight: Lower extremity numbness and pain

GSW leg XRCase: An 18 year old male presents after a single gunshot wound to his left calf. He complains of pressure-like pain near the wound and sensory numbness below his left knee. On examination, the left leg is tense. He has no dorsalis pedis pulse. Based on the history, exam, and findings in the image, which of the following is true regarding this diagnosis?

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By |2016-12-22T18:49:50-08:00Mar 9, 2015|Diagnose on Sight, Orthopedic, Trauma|

Diagnose on Sight: Swollen Upper Extremity in a Patient with End Stage Renal Disease

AV fistula pseudoaneurysmCase: A 45 year old female with end-stage renal disease presents with 2 days of worsening pain, swelling, and color change of her left upper extremity.  The symptoms began after her left arm arteriovenous (AV) fistula was accessed for hemodialysis. The skin is tense and a bruit is present. What is your diagnosis for this swollen upper extremity? Click on the image for a larger view.

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By |2016-12-22T20:07:29-08:00Sep 2, 2014|Cardiovascular, Diagnose on Sight, Ultrasound|