14 results
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
) • Systemic symptoms ... , fever, myalgia ... brain lesion • CNS ... infection (e.g., meningitis ... arteritis • Acute
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... Coltivirus Symptoms ... : • Acute meningeal ... signs (fever, nuchal ... second phase of the illness
Biphasic Illness of Leptospirosis
Some patients do not progress to severe disease. Others, rapidly develop severe disease
brief interval symptom ... • Headache ... suffusion (redness w/o exudate ... ): • Aseptic meningitis ... #Signs
Heat Illnesses and Heat Stroke - Differential Diagnosis Framework

Heat Cramps:
 • Muscle pain or spasm -
Muscles, Kidneys, Liver ... Rhabdomyolysis - AKI - Liver ... → Syncope • Signs ... /Symptoms: - Lightheadedness ... tissue damage (AKI, Liver
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
- Differential ... - Autonomic symptoms ... meningeal irritation signs ... : - Acute angle-closure ... • CNS Vasculitis
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
Dangerous Causes of Headache ... contacts with similar illness ... or at work) - acute ... thrombophilia, neurologic signs ... Dangerous #Deadly #Differential
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
Signs and Symptoms ... status changes - Meningitis ... headache, meningitis ... #signs #symptoms ... #clues #differential
Symptoms and signs of Leptospirosis
Acute phase:
 - Fever and headache
 - Conjunctival suffusion, jaundice, and photophobia
Symptoms and signs ... Leptospirosis Acute ... and headache ... Immune phase: - Meningitis ... Myocarditis (rare) - Liver
Modified dengue severity classification, PAHO/WHO
Dengue without warning signs - DNWS:
 • Person who lives or has
Headache/ retro-orbital ... transmission, with acute ... febrile illness ... Liver enlargement ... involvement, such as liver
Emergent Causes of Headache and Associated Risk Factors
Carbon monoxide poisoning
 - Breathing in enclosed or confined
with the same symptoms ... eg, furnaces) Meningitis ... febrile illness—any ... #redflags #signs ... #symptoms #differential