13 results
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
mutated in all cells ... partial retinal red reflex ... Retinoblastoma #pathophysiology ... #ophthalmology ... #diagnosis #signs
Bell's Palsy - Diagnosis and Management Summary - GrepMed Handbook

Acute Idiopathic Unilateral Facial Nerve (CN7) Palsy
Presentation:
Bell's Palsy - Diagnosis ... GrepMed Handbook Acute ... ophthalmoplegia), systemic signs ... presentation • Lyme Serology ... Management #Treatment #Neurology
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
history of cancer, HIV ... ) • Systemic symptoms ... infection (e.g., meningitis ... arteritis • Acute ... #Algorithm #neurology
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Coltivirus Symptoms ... : • Acute meningeal ... signs (fever, nuchal ... culture or by serology ... #neurology #meningitis
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
bladder and rectal reflex ... Injury #Syndromes #diagnosis ... #pathophysiology ... #signs #symptoms ... #orthopedics #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
spine • MCC- acute ... spine L1-L5 Symptoms ... Differential Diagnosis ... cord infarct • HIV ... #causes #neurology
Mastoiditis: Pathogenesis and clinical findings

Acute or Chronic Otitis Media -> 
Stage 1: Hyperemeia of the mastoid
clinical findings Acute ... cortical bone -> Meningitis ... #Mastoiditis #pathophysiology ... #signs #symptoms ... #diagnosis #otology
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
- Autonomic symptoms ... meningeal irritation signs ... headache: - Acute ... #ophthalmology ... #Neurology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
lateral sclerosis Pathophysiology ... Increased Jaw Jerk reflex ... fasciculations Common Symptoms ... motor neurons - IV ... Lateral #Sclerosis #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
- Differential Diagnosis ... and signs below ... , HIV, CMV, HTLV ... dysfunction • Abnormal reflexes ... #neurology #differential