Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
47 Cards in this Set
- Front
- Back
|
Cutaneous Leishmaniasis
is caused by what species of Flagellated protozoa |
L. mexicana complex
L. tropica (altogether ~15 different species) |
|
|
Mucocutaneous Leishmaniasis
is caused by what species of Flagellated protozoa |
**L. brazilensis complex
L. Peruviana |
|
|
Visceral Leishmaniasis
is caused by what species of Flagellated protozoa |
L. donovani complex
|
|
|
Leishmaniasis:
Reservoir? |
Reservoir: Humans, rodents, wildanimals
|
|
|
Diagnosis of Leishmaniasis
|
Amastigotes in MØ's
|
|
|
Tx: Leishmaniasis
|
Stibogluconate sodium
Meglumine Antimoniate (from CDC) |
|
|
Leishmaniasis:
Vector? |
Vector: Sandfly of the
genera Phlebotomus (old world) and Lutzomyia (new world) |
|
|
Leishmaniasis:
Infective form Disease form |
I: Promastigote
D: Amastigote |
|
|
Geographic Distribution of Cutaneous Leishmaniasis
|
Middle East
Mediterranean Africa India China |
|
|
-Firm, painless papule develops at the or near the bite site.
-May be intensely pruritic . -Granulomatous response. |
Cutaneous Leishmaniasis
|
|
Dx
|
Cutaneous Leishmaniasis
|
|
|
Mucocutaneous Leishmaniasis geographic distribution?
|
Endemic to Central and South America.
Found from Texas to N. Argentina |
|
|
Clinical s/s pf Mucocutaneous Leishmaniasis
|
-1º lesions similar to Cutaneous Leishmaniasis
-Untreated, skin lesions enlarge to involve the mucous membranes of the mouth, nose, and soft palate in 80% of cases |
|
|
Cutaneous Larva Migrans
|
|
|
Species causing Cutaneous Larva Migrans
|
Ancylostoma braziliense
Ancylostoma Caninum (dog and cat hookworms) |
|
|
Geographical distribution of Cutaneous Larva Migrans
|
Tropical & Subtropical areas
and SW USA |
|
|
Lab Dx of Cutaneous Larva Migrans
|
Eggs in stool
|
|
|
Definitive host of hookworms that cause Cutaneous Larva Migrans
|
Dog
Cat |
|
|
Why do cutaneous larva migrans causing hookworms only get under the epidermis
|
The larva do not have enzymes to penetrate the basement membrane
|
|
|
Tx: Cutaneous Larva Migrans
|
Thiabendazole and Albendazole
|
|
|
Schistosome Cercarial Dermatitis
aka? |
Swimmers itch
|
|
|
Causes of Schistosome Cercarial Dermatitis?
|
Non-human Schistosomes
|
|
|
Pathophysiology of Schistosome Cercarial Dermatitis?
|
The non-human Schistosome larva penetrate the skin, but are unable in humans to develop any further.
They Die and cause a inflammatory rxn |
|
|
Tx?
|
Symptomatic for the itching
|
|
What type of bug is that?
|
Tick
|
|
What type of bug is that?
|
Tick
|
|
What type of bug is that?
|
Lice
|
|
What type of bug is this?
|
Fly
|
|
What type of bug is this?
|
Mosquito
|
|
|
Louse life cycle
|
Egg
Larvae Nymph Adult |
|
|
Diseases transmitted by head lice
|
Typhus
Relapsing fever Trench fever |
|
|
Treatment for head lice
|
1% permethrin lindane
or ɣ-benzene hexachloride |
|
|
Treatment of body lice
|
Treat clothes rather than patient
Discard cothing or Wash in hot water and iron seams carefully or dust with 1% malathion powder |
|
|
Epidemic typhus is caused by...
|
Rickettsia prowazeki
|
|
|
Relapsing fever is caused by...
|
Borrelia recurrentis
|
|
|
Trench fever is caused by...
|
Bartonella quintana
|
|
|
Lab diagnosis of Sarcoptes scabiei
|
Mites found in skin scrapings
|
|
|
Tx: Sarcoptes scabiei
|
5% permethrin cream
|
|
What is this bug
|
Chigger
|
|
|
Colorado tick fever caused by
|
Dermacentor andersoni
|
|
|
Life cycle of mosquito
|
Egg
Larva Pupa Adult |
|
|
Protozoan disease transmitted by mosquitos
|
Malaria (Plasmodium)
|
|
|
Helminth disease transmitted by mosquitos
|
Filiariasis
(Wucheria bancrofti, Brugia malayi) |
|
|
Viral diseases transmitted by mosquitos
|
Encephalitis
Yellow fever |
|
|
Loxosceles reclusa
|
Brown Recluse
|
|
|
Latrodectus mactans
|
Black Widow
|
|
|
Human Cutaneous Myiasis
|
Infestation of tissue by larvae (maggots) of the dipterous fly
|
