24 results
Strongyloides fuelleborni Lifecycle
Free-Living Cycle
1) Eggs containing rhabditiform larvae passed in feces.
2) Rhabditiform larvae hatch in environment.
penetrate the intact skin ... Parasitic Cycle ... intestine 9) Parasitic ... pathophysiology #infectiousdiseases ... #cdc
Differential diagnosis of Skin + Eye infections
 • Bacterial: Staph spp, Strep spp, Pseudomonas spp, Bartonella,
Differential diagnosis ... of Skin + Eye infections ... , M. leprae • Parasitic ... febrilepodcast] #skin ... #dermatology #InfectiousDiseases
Clonorchiasis - Clonorchis sinensis Life Cycle
1) Embryonated eggs passed in feces.
2) Eggs ingested by the snail
encyst in the skin ... Metacercariae in flesh or skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
Strongyloides Stercoralis Lifecycle
Free-Living Cycle:
1) Rhabditiform larvae in the intestine are excreted in stool. 
2) Development into
penetrate the intact skin ... Parasitic Cycle: ... intestinal mucosa (or skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
Leishmaniasis Life Cycle
1) Sandfly takes a blood meal (injects promastigote stage into the skin)
Human Stages:
2) Promastigotes
stage into the skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
Intestinal Hookworm Life Cycle
1) Eggs in feces
2) Rhabditiform larva hatches
3) Development to filariform larva in environment
4)
larva penetrates skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Negative Abscess - Differential ... endemic fungi - Parasitic ... Toxoplasmosis, Entamoeba Skin ... Negative #Abscess #Differential ... #Diagnosis #InfectiousDiseases
Onchocerciasis - Onchocerca volvulus Life Cycle
1) Blackfly (genus Simulium) takes a blood meal (L3 larvae enter
typically are found in skin ... pathophysiology #infectiousdiseases ... #cdc #parasite
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Toxoplasmosis (CD4 ... , may also see skin ... CNS Lymphoma (CD4 ... • Nocardia • Parasitic ... Lesions #Brain #differential
Amebiasis - Balamuthia mandrillaris Life Cycle
1) Cysts
2) Trophozoite
3) Mitosis
4) Amebae (cysts and trophozoites) can enter humans
ulcerated or broken skin ... disseminated disease or skin ... pathophysiology #infectiousdiseases ... #cdc #parasite