11 results
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
history of cancer, HIV ... • Meningeal signs ... ) • Systemic symptoms ... and signs (e.g. ... brain lesion • CNS
Biphasic Illness of Leptospirosis
Some patients do not progress to severe disease. Others, rapidly develop severe disease
brief interval symptom ... -14 days): • Fever ... • Headache ... suffusion (redness w/o exudate ... #Signs
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
Dangerous Causes of Headache ... coagulopathy, decreased level ... contacts with similar illness ... thrombophilia, neurologic signs ... Dangerous #Deadly #Differential
Heat Illnesses and Heat Stroke - Differential Diagnosis Framework

Heat Cramps:
 • Muscle pain or spasm -
Heat Stroke - Differential ... → Syncope • Signs ... /Symptoms: - Lightheadedness ... sensations - Headache ... #differential #
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... Herpesviruses (MCC: HSV ... Coltivirus Symptoms ... Acute meningeal signs ... second phase of the illness
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
Signs and Symptoms ... • Fever - Febrile ... Ill, IV, and VI ... #signs #symptoms ... #clues #differential
Modified dengue severity classification, PAHO/WHO
Dengue without warning signs - DNWS:
 • Person who lives or has
without warning signs ... Headache/ retro-orbital ... acute febrile illness ... Dengue with warning signs ... the following signs
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential ... • CT: Halo sign ... cough, myalgias, headache ... Lymphadenopathy, CNS ... Constitutional symptoms
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
purpura: Strong sign ... 50 years • New headache ... • Progressive symptoms ... of headache, cognitive ... chorioretinitis, CNS
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
that results in CNS ... • Bilateral signs ... and/or symptoms ... simplex virus, HIV ... management #neurology #differential