20 results
Strongyloides Stercoralis Lifecycle
Free-Living Cycle:
1) Rhabditiform larvae in the intestine are excreted in stool. 
2) Development into
Strongyloides Stercoralis ... Strongyloides #stercoralis ... LifeCycle #diagnosis #pathophysiology ... infectiousdiseases #cdc ... #parasite
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... Pathophysiology ... Diagnosis: • CBC ... Coccidioides • Parasite ... #differential #causes
Strongyloides Stercoralis on sputum microscopy
As many suggested this was strongyloides stercoralis hyperinfection syndrome.
Infection is initiated by
Strongyloides Stercoralis ... on sputum microscopy ... Unlike other parasites ... Hyperinfection syndrome is caused ... #sputum #microscopy
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Toxoplasmosis (CD4 ... CNS Lymphoma (CD4 ... Syphilis • Pyogenic Abscess ... • Nocardia • Parasitic ... differential #diagnosis #causes
Lung Nodule - Differential Diagnosis Algorithm
Nodule on > 2 Years Without a Change in Size:
 •
Granuloma • Abscess ... Septic Embolism • Parasitic ... polyangiitis (GPA) / microscopic ... Diagnosis #Algorithm #Causes
Cysticercosis - Taenia solium Life Cycle
1) Eggs or gravid proglottids in feces and passed into environment.
2)
cysticerci. 5) Humans ... LifeCycle #diagnosis #pathophysiology ... infectiousdiseases #cdc ... #parasite
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
extrapulmonary cases ... deformity" - Assess ... decreased reflexes Pathophysiology ... of AFB by smear microscopy ... intervention CMC
Cyclosporiasis - Diagnosis and Management Summary
Pathogen: 
 • Cyclospora cayetanensis
 • Foodborne, waterbone, and soil-transmitted.
 •
intracellular parasite ... • Humans are ... • Anorexia, Nausea ... Established via stool microscopy
Amebiasis - Balamuthia mandrillaris Life Cycle
1) Cysts
2) Trophozoite
3) Mitosis
4) Amebae (cysts and trophozoites) can enter humans
trophozoites) can enter humans ... 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