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Mark Yoffe
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Ataxia: The Physical Examination

Ataxia is an extremely important clinical sign that has a broad and important differential diagnosis. Causes of ataxia include posterior circulation strokes and various toxic and metabolic insults to the cerebellum (and sometimes to the spinocerebellar…
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Here's a straightforward and helpful approach to purpura in children

  The differential diagnosis of purpura in children depends about two considerations: (1) Does the patient look ill? and (2) What is the platelet count? Here’s how it goes: Appearance Platelet Count Causes Sick Low Meningococcemia, Leukemia, DIC,…
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The formula for writing an exceptionally good radiology book is pretty straightforward: Well-organized chapters based on cardinal clinical scenarios Specific recommendations with regard to when and whom to image (or not to image!) Excellent images and…
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Introduction Somatization disorder is a maladaptive and counterproductive focus on physical symptoms or sensations, real or imagined. Patients with somatization disorders are really (and sometimes really, really!) suffering, it’s just that they have all…
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Upchuckology: The Clinical Significance of the Various Descriptions of Vomitus #FOAMed #USMLE

Undigested food = esophageal issue (e.g., pharyngeal pouch or achalasia). Note: this is not really vomiting, but regurgitation, which is much less forceful and does not come from the stomach. Non-bilious, with partially digested food = gastric outlet…
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Need to know how to examine and report physical findings in patients with muscle diseases? Here's how! #FOAMed

How to examine and report muscle findings in patients with suspected primary or secondary myopathies: Abnormal movements Fasciculation → peripheral nerve injury Tremor Resting → Parkinsonism (with bradykinesia and rigidity) Intention → cerebellar issue →…
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The 25 Best Medical Books of all Time. Is your favorite book on this list?

Here is the Medical Media Review’s list of the 25 best medical books of all time: Dr. Gerald de Lacey, The Chest X-Ray: A Survival Guide by  (2008, reviewed here). Igbaseimokumo, Usiakimi, MD, Brain CT Scans in Clinical Practice (2009, reviewed here)…
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Central vs. Peripheral Vertigo Simplified: here's how to wrap your head around it once and for all!

The first and most important step in evaluating a patient with vertigo is to attempt to distinguish vertigo of central origin from vertigo of peripheral origin because the management of central vertigo (brain imaging, hospital admission) is very different…
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Here are the important stroke and TIA mimics are: Systemic and metabolic insults: especially hypoglycemia, but also a very wide variety of other systemic insults such as infections (urinary tract infections, pneumonia) and toxins, all of which can cause…
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