33 results
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
- Differential ... ) • Systemic symptoms ... and signs (e.g. ... , fever, myalgia ... lesion • CNS infection
Anaplasma Infection - Anaplasma phagocytophilum
Pathophysiology: 
 • Obligate, intracellular bacteria
 • Transmitted via blacklegged tick —
Anaplasma Infection ... within morulae Signs ... and symptoms: ... after bite • Fever ... , headache, malaise
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
13 Dangerous Causes ... of Headache: ... coagulopathy, decreased level ... thrombophilia, neurologic signs ... Dangerous #Deadly #Differential
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
Pain (Otalgia) - Differential ... the following symptoms ... : headache, malaise ... , weight loss, fever ... • Associated symptoms
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... Coltivirus Symptoms ... influenzae Symptoms ... Acute meningeal signs ... rav7ks #CNS #Infections
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 ... Diagnosis #Illness #Signs
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Causes of Peripheral ... history of viral infection ... without an obvious cause ... varying neurologic signs ... #differential #
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... : Fever, headache ... : Fever, headache ... Demyelinating disease caused ... #differential #
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
later stage) • Headache ... • Papilledema, headache ... • Caused by immune ... and not direct infection ... Tuberculosis #diagnosis #differential
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
Signs and Symptoms ... stroke • Severe nausea ... • Fever - Febrile ... #signs #symptoms ... #clues #differential