138 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
• Mexion - C8 (median ... opp - C8, T1 (median ... hand" ± Horner Syndrome ... Carpal Tunnel Syndrome ... sensory #motor #arm #physicalexam
Causes of Pleural Effusion - Differential Diagnosis Algorithm
Transudate - Hydrostatic
 • Congestive heart failure
 • Constrictive
Causes of Pleural ... Differential Diagnosis Algorithm ... embolism • Collagen vascular ... Pulmonary #Diagnosis #Algorithm ... #Hepatology #causes
Pemberton's Sign caused by a Retrosternal Thyroid Goiter

Elevating the arms causes the previously flat neck veins
Pemberton's Sign caused ... Elevating the arms causes ... superior vena cava syndrome ... Thyroid #Goiter #PhysicalExam ... clinical #video #vascular
Dizziness - Central and Peripheral Causes - Differential Diagnosis
Central Causes:
 • Cerebrovascular:  vertebrobasilar, TIA, Wallenburg,
canal dehiscence syndrome ... • Cogan's syndrome ... toxicity • Otitis media ... Amy Chung, MD, MSc ... Differential #Diagnosis #algorithm
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Etiology: • Vascular ... Disruptions in vascular ... Kasabach-Merritt syndrome ... Gardner-Diamond syndrome ... Differential #Diagnosis #hematology
Vascular Joint Pain - Differential Diagnosis Algorithm 
 - Constant Pain (Ischemia)
 - Acute Onset
 -
Differential Diagnosis Algorithm ... Marfan's Syndrome ... #JointPain #MSK ... Differential #Diagnosis #Algorithm ... #Orthopedics #Causes
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Hemolysis - Diagnostic Algorithm ... and Causes Increased ... #Differential #Causes ... #Workup #Hematology ... Hall Textbook of Medical
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... Differential Diagnosis Algorithm ... Renal Disease Vascular ... TeIangiectasia Vascular ... #Causes #Hematology
Causes of Excessive Daytime Sleepiness - Differential Diagnosis Algorithm
Insufficient Sleep
 • Poor Sleep Hygiene
 • Insomnia
Causes of Excessive ... Restless Legs Syndrome ... Medical/Psychiatric ... Parkinson's, MS) ... #Causes
Causes of Encephalopathy - Differential Diagnosis Algorithm
Hyperacute:
 - Primary Neurologic: Vascular (IS, ICH), Seizure, Migraine, Trauma
Causes of Encephalopathy ... Differential Diagnosis Algorithm ... paraneoplastic syndromes ... Differential #Diagnosis #Algorithm ... #Causes