The Clinical Problem Solvers Episode 449: Live from Southern SGIM – Clinical Unknowns with Alec & Ann Marie
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Mar 4, 2026 Live recordings from Southern SGIM explore two dramatic clinical puzzles. One case follows a young man with fever, bloody diarrhea, multi-organ failure, hemolysis clues, and consideration of HLH. The other traces a teen with progressive neuropathy, pancytopenia, splenomegaly, and marrow findings leading to a lysosomal storage diagnosis. Energetic clinical reasoning and diagnostic detective work drive the conversation.
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Hyperacute Illness Suggests One Unifying Process
- Acute multi-organ failure in a young person often reflects a unifying hyperacute inflammatory or toxic process rather than separate chronic diseases.
- Rapid timeline, bloody diarrhea, high fevers, and marked transaminase/INR elevations pointed the team toward infections, toxins, ischemia, or systemic inflammatory syndromes.
Run Focused Early Tests To Narrow Mechanisms
- Prioritize immediate tests that distinguish key mechanisms: acetaminophen level, LDH/haptoglobin, peripheral smear, and blood cultures.
- Those results separate toxin/ischemia, hemolysis, and infectious causes quickly and guide urgent specialty consults.
HLH Can Be Fulminant Without Classic Signs
- HLH/MAS can present without classic features like splenomegaly and still cause extreme hyperinflammation with ferritin >10,000 and cytopenias.
- In adults HLH is usually secondary to infection, malignancy, or autoimmune disease, so search for triggers aggressively.
