5855 results
Intestinal Hookworm Life Cycle
1) Eggs in feces
2) Rhabditiform larva hatches
3) Development to filariform larva in environment
4)
) Rhabditiform larva ... to filariform larva ... 4) Filariform larva ... Re-activated larvae ... Intestinal #lifecycle #diagnosis
Ascaris lumbricoides - Ascariasis Life Cycle
1) Adults in small intestine
2) Fertilized egg - Unfertilized egg (will
Embryonated egg with L3 larva ... intestine 6) Hatched larvae ... to lungs. 7) Larvae ... Ascariasis #LifeCycle #diagnosis
Diphyllobothriasis - Diphyllobothrium Life Cycle
1) Unembryonated eggs passed in feces
2) Eggs embryonate in water
3) Coracidia hatch
4) Procercoid larvae ... fish Procercoid larva ... into plerocercoid larva ... Diphyllobothrium #LifeCycle #diagnosis
Toxocariasis
Pathogen: Toxocara - worldwide distributed helminth 
Transmission: 
 • Dogs and cats are the major source
eggs hatch and larvae ... gut wall • The larvae ... VLM) • Ocular larva ... migrans Diagnosis ... Toxocariasis #Toxocara #diagnosis
Cutaneous larva migrans skin Rash
25 F recent Caribbean vacation, walked barefoot on sand and now with
Cutaneous larva ... with creepy rash. diagnosis ... Cutaneous larva ... Cutaneous larva ... self-limited Diagnosis
Linear Rash in the Returning Traveler - Differential Diagnosis
Infectious:
 • Cutaneous larva migrans
 • Scabies (Sarcoptes
- Differential Diagnosis ... : • Cutaneous larva ... helminthic eruptions: Larva ... #Differential #Diagnosis
Strongyloides fuelleborni Lifecycle
Free-Living Cycle
1) Eggs containing rhabditiform larvae passed in feces.
2) Rhabditiform larvae hatch in environment.
) Rhabditiform larvae ... ; rhabditiform larvae ... ) Rhabditiform larvae ... filariform (L3) larvae ... LifeCycle #Parasite #diagnosis
Strongyloidiasis Treatment
Asymptomatic ± eosinophilia (Very low risk):
 • Diagnostic: Serology, Stool Ova and parasites (O&P) examination
low risk): • Diagnostic ... examination for larvae ... (Low risk): • Diagnostic ... Moderate risk): • Diagnostic ... High risk): • Diagnostic
Strongyloides Stercoralis Lifecycle
Free-Living Cycle:
1) Rhabditiform larvae in the intestine are excreted in stool. 
2) Development into
) Rhabditiform larvae ... ) Rhabditiform larvae ... ) Rhabditiform larvae ... filariform (L3) larvae ... stercoralis #LifeCycle #diagnosis
Loiasis - Loa loa Life Cycle
1) Fly (genus Chrysops) takes a meal (L3 larvae enter bite
takes a meal (L3 larvae ... muscles 6) L1 larvae ... 7) L3 larvae ... Loaloa #LifeCycle #diagnosis