20 results
Causes of Proximal Muscle Weakness That May Mimic Inflammatory Myopathy
 • Central or peripheral neurologic disease
Causes of Proximal ... • Myasthenia gravis ... Hydroxychoroquine - Statins ... #differential #causes
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... • Myasthenia Gravis ... Dystrophy • Statin ... Diagnosis #Algorithm #Causes
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Syndrome, Myasthenia Gravis ... poisoning, Scorpion sting ... Neuromuscular #Weakness #Causes
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Myasthenia Gravis ... Myasthenia Gravis ... muscles: “myasthenic crises ... Imaging - CT Chest ... Myasthenia Crises
Corynebacterium diphtheriae on Culture and Microscopy
Corynebacterium diphtheriae, the cause of vaccine-preventable diphtheria.

Matching name to features:
"Coryne" (korune)
diphtheriae, the cause ... club" (see gram stain ... Rich Davis, PhD,
Drugs associated with worsening of Myasthenia Gravis (MG):
•	D-penicillamine 
•	Botulinum toxin.
•	Telithromycin
•	Fluoroquinolones 
•	Quinine
•	Magnesium
•	Macrolide antibiotics 
•	Corticosteroids (may cause transient
of Myasthenia Gravis ... Corticosteroids (may cause ... Beta-blockers • Statins
Trypanosoma cruzi Reactivation in the Brain- ...Magnetic resonance images of the brain showed a mass measuring
on T2-weighted imaging ... on T1-weighted imaging ... kinetoplasts (masses ... #clinical #NEJM
Cryptococcus neoformans Meningoencephalitis- The opening pressure on lumbar puncture was 29 cm of water (reference range,
Gram’s stain (Panel ... and India ink stain ... #clinical #NEJM ... meningoencephalitis #gram #stain
Macroglossia in Light-Chain Amyloidosis- Physical examination revealed macroglossia, with indentations from the teeth (Panel A)...A biopsy
after Congo red staining ... well-recognized cause ... AL #lightchain #NEJM
Causes of Myocarditis 
1. Infectious Myocarditis
 • Bacterial - Staphylococcus, Streptococcus, Pneumococcus, Meningococcus, Gonococcus, Salmonella, Corynebacterium
Causes of Myocarditis ... polymyositis, myasthenia gravis ... more commonly cause ... Miscellaneous - Scorpion sting ... #Myocarditis #Causes