102 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... antibiotics as a cause ... Autoimmune: Crohn's disease ... #Diagnosis #InfectiousDiseases
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... Pathophysiology ... hemorrhage • Treatment ... #differential #causes ... #management #treatment
Reversible Neurocognitive Disorders (Reversible Causes of "Dementia")
 • Structural/Mass: Subdural Hematoma, NPH, Intracranial tumor
 • Infection:
Disorders (Reversible Causes ... Encephalitis, Abscess ... , Whipple's disease ... differential #diagnosis #causes ... #neurology
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
Causes of Dizziness ... • Meniere's Disease ... Dysfunction - Imbalance, neurologic ... Cerebellar / Brainstem Abscess ... Dizziness #Vertigo #Neurology
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... from a group to assess ... who test negative ... that are true negatives ... but not on the causal
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
Mycobacterium abscessus ... underlying lung disease ... as disseminated disease ... It can also cause ... #differential #infectiousdiseases
Tularemia - Diagnosis and Management Summary
Francisella tularensis - Aerobic fastidious gram-negative Coccobacillus - Zoonotic Infection
 •
fastidious gram-negative ... conditions Diagnosis: Serology ... Culture & GS, PCR Treatment ... : • Severe Disease ... #infectiousdiseases
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Demyelinating Disease ... (MS), Epidural abscess ... Neuromuscular #Weakness #Causes ... differential #diagnosis #neurology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
lymphoproliferative disease ... Syphilis • Pyogenic Abscess ... • Metastatic disease ... differential #diagnosis #causes ... #radiology #neurology
Altered Mental Status - Differential Diagnosis
 • Neurologic: Stroke, Cerebral hypoxia, Cerebral hemorrhage, Seizure, Trauma, TBI,
Differential Diagnosis • Neurologic ... deficiency, Thyroid disease ... Encephalitis, Abscess ... Differential #Diagnosis #Causes