Celiac Artery Trunk Anatomy - Arterial Branches 1) Common Hepatic Artery 2) Splenic Artery 3) Left Gastric Artery By @rev.med #Celiac #Artery #Arterial #Branches #Trunk #Anatomy

Coins on Chest XRay - Trachea vs Esophagus Coins in the sagittal plane on X-ray are more likely to be in the trachea than in the esophagus. #Coins #ChestXRay #Trachea #Esophagus #Peds #Pediatrics #CXR #Radiology #Comparison #Clinical

Anisocoria algorithm - Solid arrows indicate recommended approaches to diagnosis. Dotted arrows indicate optional workup. #Anisocoria #algorithm #ophthalmology #diagnosis #differential

#Preseptal #Postseptal #Orbital #Cellulitis #Periorbital #comparison #diagnosis

Algorithm for the Evaluation and Localization of Diplopia #Diagnosis #EM #Ophtho #Diplopia #Localization #Cranial #Nerve #Algorithm #Differential #Ddxof

Anaphylaxis: Signs and Symptoms Anaphylaxis: when any egg of three conditions is met: 1. Acute onset of skin/mucosal involvement with 2 1 of' • respiratory compromise • hypotension 2. Rapid onset of symptoms after exposure to a likely allergen with >2 of: • skin/mucosal symptoms • respiratory symptoms • hypotension • persistent GI symptoms 3. Hypotension after exposure to known allergen Note: Severity of symptoms in the acute phase does not necessarily predict occurrence of late phase symptoms Signs / Symptoms / Complications: • Abdominal cramping, vomiting, diarrhea • Wheezing, dyspnea, hypoxia • Angioedema • Flushing • Hypotension -> Circulatory collapse -> - Neurological Compromise (e.g. syncope, seizures) - Cardiac Compromise (e.g. arrythmias, ischemia) • Urticaria • Angioedema #Anaphylaxis #pathophysiology #immunology #diagnosis #signs #symptoms

Anaphylaxis: Pathogenesis Anaphylaxis is a Type 1 hypersensitivity reaction While the primary mechanism of anaphylaxis is mast cell activation, basophils and eosinophils may also play a role Inappropriate mast cell activation => Immediate Phase (seconds-minutes) => Mast cell degranulation -> release of preformed mediators => • Histamine • Lipid mediators (e.g. prostaglandins, leukotrienes) • Other mediators (e.g. PAF, tryptase, TNF) • Additional production of inflammatory mediators (e.g. cytokines, chemokines) => • Vasodilation • Increased vascular permeability • Smooth muscle contraction in airways • Increased mucus secretion • Recruitment of inflammatory cells • ANS activation => Anaphylaxis #Anaphylaxis #pathophysiology #immunology

Clonus continuous in a patient with cervical myelopathy. - Daniel Kaplan, MD FACP @DMKapMD #clonus #ankle #physicalexam #neurology #clinical #video

Afferent Pupillary Defect An afferent pupillary defect passing through its timeline. The pupil that does not react to the light returns to its neutral state when it is illuminated. The impression of dilation occurs because it was still under the effect of the consensual reflex. via @neurologiabr #Afferent #Pupillary #Defect #clinical #video #neurology #ophthalmology #PhysicalExam #RAPD

Positive Lachman test in ACL Injury Here is an exam of a patient under anesthesia with an ACL tear. You’ll notice the looseness of the knee during the exam. That causes the knee to buckle during running and cutting activities. via Dr. Jason Hammond @dr.jasonhammond #Lachmans #test #ACL #Knee #Injury #Positive #ACLTear #clinical #video #PhysicalExam #Sports #Ortho #anterior #cruciate #ligament #msk