9 results
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
Altered mental status ... ) • Systemic symptoms ... and signs (e.g. ... brain lesion • CNS ... #Algorithm #neurology
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... parenchymatous (tabes ... Acute meningeal signs ... Altered mental status ... #neurology #meningitis
Lyme Disease: Early and Late Clinical manifestations
Stage 1. Localized
 • EM appears 7-14 days at the
manifestations Stage ... lymphocytic meningitis, CN ... years after • Arthritis ... Lyme #Disease #diagnosis ... #signs #symptoms
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
Signs and Symptoms ... Nonfocal mental status ... - Meningitis, encephalitis ... #symptoms #clues ... #differential #diagnosis
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
with systemic, neurologic ... those coming off aorta ... systemic sx + signs ... GCA #Temporal #Signs ... #Symptoms #Diagnosis
Emergent Causes of Headache and Associated Risk Factors
Carbon monoxide poisoning
 - Breathing in enclosed or confined
with the same symptoms ... ) Meningitis, encephalitis ... immunization Temporal arteritis ... headache #redflags #signs ... #emergency #diagnosis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
purpura: Strong sign ... < 30 years • Aorta ... ): • Aorta and ... • Progressive symptoms ... chorioretinitis, CNS
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Differential Diagnosis ... and CNS • Headache ... Cranial neuritis • Encephalitis ... Induced Lupus: • Symptoms ... Erythematosus #Diagnosis
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
conidia → Yeast → travel ... iron overload states ... especially the CNS ... MC: CNS CSF: • ... Meningitis, septic arthritis