The Clinical Problem Solvers Episode 328 – Clinical Unknown – Alec & Austin discuss Lauren’s case
Apr 11, 2024
A diagnostic mystery following a young adult with acute abdominal distension, regurgitation, and high-pitched bowel sounds. Discussion centers on imaging that hints at superior mesenteric artery narrowing, motility disorders, and bezoar versus infectious causes. The case unfolds to reveal duodenal inflammation, stool testing positive for Giardia, and lessons on patient communication and bedside reasoning.
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Solid Liquid Gas Framework For Distension
- Approach abdominal distension by categorizing causes as solid, liquid, or gas to narrow the differential quickly.
- Austin applied Reza's framework: stool/organomegaly (solid), ascites/diarrhea (liquid), and free air/ileus (gas).
Get CT Early For Unexplained Distension
- When exam and labs are nondiagnostic but distension is present, obtain cross-sectional imaging (CT) to localize obstruction or masses.
- Alec preferred CT over X-ray or limited ultrasound to define anatomy and guide next steps.
SMA Imaging Can Be An Incidental Finding
- Radiographic narrowing of the SMA–aorta angle suggests SMA syndrome but imaging alone is not diagnostic and can be incidental.
- Both Alec and Austin noted SMA findings may be asymptomatic and need clinical correlation with weight loss or symptoms.