478 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 ... small intestine Larvae ... Re-activated larvae
Strongyloides Stercoralis on sputum microscopy
As many suggested this was strongyloides stercoralis hyperinfection syndrome.
Infection is initiated by
by infectious larvae ... of the feet) Larvae ... Larvae are then ... Infective larvae ... Larvae in stool/
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
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
Toxocariasis
Pathogen: Toxocara - worldwide distributed helminth 
Transmission: 
 • Dogs and cats are the major source
eggs hatch and larvae ... gut wall • The larvae ... Toxocariasis - Visceral Larva ... VLM) • Ocular larva
Cutaneous larva migrans skin Rash
25 F recent Caribbean vacation, walked barefoot on sand and now with
Cutaneous larva ... Cutaneous larva ... soil/sand, with larvae ... Cutaneous larva ... infection termed larva
Strongyloides stercoralis L3 (filariform) larvae - bronchoalveolar lavage fluid microscopy

Bobbi Pritt, MD @ParasiteGal

#Strongyloides #stercoralis #filariform #larvae
L3 (filariform) larvae ... bronchoalveolar lavage ... stercoralis #filariform #larvae
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 ... Rhabditiform larvae
Strongyloidiasis Treatment
Asymptomatic ± eosinophilia (Very low risk):
 • Diagnostic: Serology, Stool Ova and parasites (O&P) examination
examination for larvae ... examination for larvae ... examination for larvae ... examination for larvae ... examination for larvae
Creeping Eruption - Cutaneous Larva Migrans - The eruption was migratory, moving a few millimeters to
Eruption - Cutaneous Larva ... , or cutaneous larva ... InfectiousDisease #Cutaneous #Larva