9 results
Schematic representation of the major sources of ammonia production and its excretory pathway (GI = gastrointestinal,
They can be grouped ... Other (rare): - Reye ... syndrome (Peds) ... #Pathophysiology ... Hyperammonemia #Differential
BEE Syndromes - Non-inflammatory Causes

Immune-mediated conditions affecting the Brain, Eye, and Ear

Visual or auditory symptoms in
BEE Syndromes - ... affecting the Brain, Eye ... neuropathy (LHON) plus MRI ... consistent with MS ... noninflammatory #differential
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Cauda Equina Syndrome ... spine Signs / Symptoms ... does not have to be ... suspected, immediate MRI ... #MSK #pathophysiology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
monophasic Pathophysiology ... cord compression (MRI ... Bilateral signs and/or symptoms ... Myelitis #diagnosis #management ... #neurology #differential
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Guillain-Barré Syndrome ... than one after symptom ... the underlying pathophysiology ... - Spinal MRI may ... #diagnosis #management
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
• Inflammatory eye ... or serologies + symptoms ... not-optimal but may be ... #differential # ... diagnosis #management
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
Etiology: • Pathophysiology ... Neurological symptoms ... Vascular narrowing on MRA ... Reversible course Differential ... #diagnosis #management
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
lateral sclerosis Pathophysiology ... fasciculations Common Symptoms ... MRI: Brain, cervical ... conditions listed in differential ... neurology #diagnosis #management
PFAPA Syndrome - Periodic Fever, Aphthous Stomatitis, Pharyngitis, and Adenitis

EPIDEMIOLOGY:
PFAPA is the most common syndrome entailing
fever (FMF) PATHOPHYSIOLOGY ... reporting such symptoms ... several other symptoms ... DIFFERENTIAL DIAGNOSIS ... edema around the eyes