41 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... - Differential Diagnosis ... antibiotics as a cause ... Autoimmune: Crohn's disease ... #InfectiousDiseases
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Toxoplasmosis (CD4 ... Chorioretinitis • Diagnosis ... • Nocardia • Parasitic ... #differential #diagnosis ... #causes #radiology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
→Activation of CD8 ... accumulation of clinical ... salmonella, ...), Parasites ... Drugs, Unknown cause ... Treatment: •
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... Lung Abscess - Clinical ... : • CBC - Leukocytosis ... Coccidioides • Parasite ... #differential #causes
Infectious Causes of Adrenal Insufficiency
Anatomical distribution of vessels to the adrenal makes the gland prone to
Infectious Causes ... disseminated microbial disease ... Pneumocystis Jiroveci • Parasites ... #differential #diagnosis ... endocrinology #infectiousdiseases
Neurocysticercosis (NCC) Summary
Pathogen: Larval stage of Taenia solium
Infection: Ingesting undercooked pork containing cysticerci in muscle tissue.
Degenerative: Parasite ... calcifications cause ... Orbital/Ocular Treatment ... Neurocysticercosis #NCC #parasites ... #infectiousdiseases
Chagas Disease - American Trypanosomiasis - Diagnosis and Management Summary
Chagas disease (American trypanosomiasis) is an infectious
Trypanosomiasis - Diagnosis ... caused by the protozoan ... parasite Trypanosoma ... Romana's sign ... only available at CDC
Cyclosporiasis - Diagnosis and Management Summary
Pathogen: 
 • Cyclospora cayetanensis
 • Foodborne, waterbone, and soil-transmitted.
 •
intracellular parasite ... • Anorexia, Nausea ... routine O&P • Clinical ... #management #treatment ... #microbiology #infectiousdiseases
Amebiasis - Balamuthia mandrillaris Life Cycle
1) Cysts
2) Trophozoite
3) Mitosis
4) Amebae (cysts and trophozoites) can enter humans
, disseminated disease ... mandrillaris #LifeCycle #diagnosis ... pathophysiology #infectiousdiseases ... #cdc #parasite
Trypanosomiasis - Trypanosoma cruzi Life Cycle
1) Triatomine bug takes a blood meal (passes metacyclic trypomastigotes in
a blood meal (passes ... Clinical manifestations ... Tcruzi #LifeCycle #diagnosis ... pathophysiology #infectiousdiseases ... #cdc #parasite