39 results
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
- Differential Diagnosis ... papilledema • Horner syndrome ... • Meningeal signs ... thrombosis • Hemorrhage ... #Algorithm #neurology
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
- Differential Diagnosis ... meningeal irritation signs ... Non-traumatic subarachnoid hemorrhage ... #differential #diagnosis ... ophthalmology #Neurology
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Cerebellar hemorrhage ... (Wallenberg's syndrome ... Syndrome usually ... signs or symptoms ... #differential #diagnosis
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
Signs and Symptoms ... vasoconstriction syndrome ... vasoconstriction syndrome ... #signs #symptoms ... #differential #diagnosis
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
Parinaud's Syndrome ... → "setting sun sign ... " - Vascular disease ... #diagnosis #pineal ... #neurology
Biphasic Illness of Leptospirosis
Some patients do not progress to severe disease. Others, rapidly develop severe disease
develop severe disease ... • Fever • Headache ... • Pulmonary hemorrhage ... Biphasic #Phases #Diagnosis ... #Illness #Signs
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Pulmonary Renal Syndrome ... Diffuse alveolar hemorrhage ... Differential Diagnosis ... #differential #diagnosis ... #nephrology
Posterior Reversible Encephalopathy Syndrome (PRES) - Diagnosis
Clinical Features:
 • Altered mental status (Either lethargy, confusion, or
Encephalopathy Syndrome ... Generalized > focal) • Headache ... • Autoimmune disease ... Encephalopathy #Syndrome ... #Diagnosis #Neurology
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
- Differential Diagnosis ... • Meniere's Disease ... symptoms/signs, ... • Cerebellar Hemorrhage ... #Differential #Diagnosis
Lyme Disease: Early and Late Clinical manifestations
Stage 1. Localized
 • EM appears 7-14 days at the
Lyme Disease: Early ... myalgia, arthralgia, headache ... • Heralded by neurologic ... WuidQ #Lyme #Disease ... #diagnosis #signs