13 results
Erythroderma - Diagnostic Algorithm. Pathophysiology: 1) Extensive cutaneous capillary dilation, results in widespread exfoliation of the
Erythroderma - Diagnostic Algorithm ... Pathophysiology: ... Causes: 1) Exfoliative ... Erythroderma #Nikolsky #Algorithm ... #Differential #Ddxof
Lung Nodule - Differential Diagnosis Algorithm
Nodule on > 2 Years Without a Change in Size:
 •
Lung Nodule - Differential ... Diagnosis Algorithm ... Septic Embolism • Parasitic ... Differential #Diagnosis #Algorithm ... #Causes #Pulmonary
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Toxoplasmosis (CD4 ... lesions • 80% with lung ... CNS Lymphoma (CD4 ... • Nocardia • Parasitic ... differential #diagnosis #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... Abscess Pathophysiology ... Diagnosis: • CBC ... Coccidioides • Parasite ... #differential #causes
Echinococcus Life Cycle
1) Adult in small intestine eggs
2) Embryonated egg in feces
3) Oncosphere hatches; penetrates intestinal
commonly liver and lung ... LifeCycle #diagnosis #pathophysiology ... infectiousdiseases #cdc ... #parasite
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Disease by CD4 ... Count: Any CD4 ... Legionella: • Nausea ... factor • May cause ... possible in HIV PARASITIC
Intestinal Hookworm Life Cycle
1) Eggs in feces
2) Rhabditiform larva hatches
3) Development to filariform larva in environment
4)
circulation in the lungs ... lifecycle #diagnosis #pathophysiology ... infectiousdiseases #cdc ... #parasite
Ascaris lumbricoides - Ascariasis Life Cycle
1) Adults in small intestine
2) Fertilized egg - Unfertilized egg (will
and migrate to lungs ... LifeCycle #diagnosis #pathophysiology ... infectiousdiseases #cdc ... #parasite
Loiasis - Loa loa Life Cycle
1) Fly (genus Chrysops) takes a meal (L3 larvae enter bite
blood and in the lungs ... LifeCycle #diagnosis #pathophysiology ... infectiousdiseases #cdc ... #parasite
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH) Pathophysiology ... →Activation of CD8 ... salmonella, ...), Parasites ... Drugs, Unknown cause ... 100 mg/m2) : in case