8 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. ... arteritis • Acute
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
Cardinal Symptoms ... localizing signs ... or symptoms - Malaria ... , acute HIV infection ... , Lassa fever, acute
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
Dangerous Causes of Headache ... hypertension - CNS ... infection: fever ... or at work) - acute ... thrombophilia, neurologic signs
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
, chills, headache ... especially the CNS ... MC: CNS CSF: • ... Aspergillosis Pathophysiology ... pulmonary infection
Summary of Oncologic Emergencies

Neutropenic fever:
- Fever + ANC < 500 → start cefepime ± vancomycin (if
: - Fever + ANC ... if SSTI or port infection ... : CNS changes, headache ... : CNS changes, headache ... renal failure, pulmonary
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... Coltivirus Symptoms ... • Fever • Nuchal ... : • Acute meningeal ... signs (fever, nuchal
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... • CT: Halo sign ... Lymphadenopathy, CNS ... Constitutional symptoms ... #HIV #AIDS #pulmonary
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