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Diagnostic Atypia

Diagnostic Atypia

Drs. Michael Arcieri and Andrew Sanchez 31 Episodes Oct 11, 2026

Diagnostic Atypia is a medical education podcast hosted by Drs. Michael Arcieri and Andrew Sanchez. Inspired by the Diagnosis community, it offers a space for diagnostic enthusiasts to explore challenging cases from general medicine wards and the medical ICU. Each episode covers puzzling symptoms and rare conditions, highlighting the twists and turns of atypical diagnostic journeys. Clinicians and students are encouraged to submit thought-provoking cases for group reflection, and episode-associated teaching is available at DxAtypia.com.

Episodes

Episode 32: Diagnostic Dilemma - Diarrhea
Episode 32: Diagnostic Dilemma - Diarrhea Oct 11, 2026 53:54 Mike brings one of the most humbling cases of his career: a catastrophe hiding behind an ordinary complaint.
Episode 31: Diagnostic Dilemma - Syncope + Hypotension
Episode 31: Diagnostic Dilemma - Syncope + Hypotension Sep 27, 2026 41:36 Syncope. Shock. Troponin of 3,872. Her ECG looks just like her old one... or does it not? Three days of antibiotics later, the pressors are still climbing. What is missing?
Episode 30: Diagnostic Dilemma - AKI
Episode 30: Diagnostic Dilemma - AKI Sep 13, 2026 42:01 Mike presents a case of AKI – as the DDx shrinks, things become crystal clear
Episode 29: Diagnostic Dilemma - "Ileus"
Episode 29: Diagnostic Dilemma - "Ileus" Aug 30, 2026 40:29 We're back! Andrew presents a case of "ileus" — a gut that's gone eerily quiet, until a twist reveals it was never being lazy.
Episode 28: Diagnostic Dilemma - AKI on Allograft + CHF
Episode 28: Diagnostic Dilemma - AKI on Allograft + CHF May 18, 2026 52:29 Mike presents a case of AKI with heart failure in a patient with recent TAVR and kidney transplant. When do you reconsider the diagnosis in a patient failing to respond to treatment despite strong evidence for the diagnosis you're treating? Join us for a wild ride where surprise is hiding behind every test.
Episode 27: Rapid Response! - GI Bleed
Episode 27: Rapid Response! - GI Bleed May 4, 2026 32:20 Kicking off a new series dedicated to management reasoning, Andrew presents a case of "dark stools" after recent UGIB. Occam's razor vs Hickam's dictum?
Episode 26: Diagnostic Dilemma - Painless Vision Loss
Episode 26: Diagnostic Dilemma - Painless Vision Loss Apr 20, 2026 55:13 Mike presents the case of a man with painless vision loss and new colorblindness. The retinal exam suggests ischemic vs inflammatory causes. Are acute symptoms always explained by acute diseases?
Episode 25: Guestpisode! - Pan Positive ROS
Episode 25: Guestpisode! - Pan Positive ROS Apr 15, 2026 01:00:14 Dr. Jeffrey Shen presents a perplexing case of a patient with symptoms across nearly all organ systems with some non-specific positive tests but no unifying diagnosis. How can testing characteristics obscure even the most common diagnoses? What does it take to say that a disease has been truly "ruled out?"
Episode 24: Diagnostic Dilemma - Subacute Fatigue + BMP Derangements
Episode 24: Diagnostic Dilemma - Subacute Fatigue + BMP Derangements Mar 23, 2026 44:04 Andrew presents the case of a woman with subacute fatigue but no localizing symptoms. On arrival, every lab is flashing red. The diagnosis remains elusive, but seems so obvious in reflection. Can you recognize the illness script?
Episode 23: Diagnostic Dilemma - Readmission with Acute AMS
Episode 23: Diagnostic Dilemma - Readmission with Acute AMS Mar 9, 2026 50:22 Mike presents the case of a recently hospitalized man readmitted to the hospital for altered mental status with neuropsychiatric features. The case escalates without a diagnosis until suddenly he's "cured." The only issue? You treated with so many agents simultaneously that now you have no idea which one to keep. Turns out, his nurse holds the final clue.
Episode 22: Diagnostic Dilemma - Post-operative Ascites with Mystery Guest!
Episode 22: Diagnostic Dilemma - Post-operative Ascites with Mystery Guest! Feb 23, 2026 47:51 Mike works through a case of new-onset ascites, where every test comes back negative. Or did they? When we don't know what test to order next, sometimes the best approach is to reconsider the results we already have. What is hiding in plain sight?
Episode 21: Guestpisode! - Bradycardia
Episode 21: Guestpisode! - Bradycardia Dec 22, 2025 50:00 Dr Nicholas Salter presents the case of an elderly woman evaluated in the ED for confusion & bradycardia. What if the disease marker can cause the disease itself?

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