20- Parasitic Infections Flashcards
May be the sole manifestation of early amebiasis
Chronic urticaria
Treatment of choice for amebiasis cutis
Metronidazole 750mg TID x 10 days
Common cause of vaginal pruritus with burning and frothy leukorrhea
Vaginal mucosa is bright red with pseudomembranous patches
Trichomoniasis
Treatment of trichomoniasis
Metronidazole 2g single dose
Or 500mg BID x 7 days
Treatment for trichomoniasis in pregnant women
Clotrimazole 100mg intravaginally per night x 2 weeks
Treatment for cutaneous leishmaniasis
Spontaneous healing in 12-18 months
Topical: paromomycin sulfate 15% + methylbenzethonium chloride 12%
Ketoconazole cream
Cryotherapy, photodynamic therapy, laser
Systemic: immunosuppressed
Sodium antimony gluconate IM/IV 20mg/kg/day in 2 doses x 28 days
Cutaneous ulcer
Transmitted by sandfly
Endemic in Asia minor and Mediterranean
Cutaneous leishmaniasis
Mucocutaneous leishmaniasis has an initial cutaneous ulcer and develops a secondary mucosal lesions after how much time?
Within 5 years
Earliest mucosal lesion in mucocutaneous leishmaniasis
Hyperemia of nasal septum with subsequent ulceration
Antimony resistance is common in this type of leishmaniasis
Mucocutaneous
Treatment for mucocutaneous leishmaniasis
Combination therapy:
Antimonials with rifampin/azithromycin
Amphotericin B
Primary target site of leishmanial parasites in visceral leishmaniasis is
Reticuloendothelial system
-spleen, liver, bone marrow and lymph nodes
Treatment for visceral leishmaniasis
Pentavalent antimony
Amphotericin B- resistant cases
Evanescent erythema, erythema multiforme and edema (angioedema) are the early skin manifestations observed in
Trypanosomiasis
Treatment of East African (Rhodesian) trypanosomiasis
No CNS involvement:
With CNS involvement:
No CNS involvement: suramin
With CNS involvement: melasoprol
Treatment for West African (Gambian) trypanosomiasis
Pentamidine isethionate
Treatment for American trypanosomiasis (Chagas disease)
Nifurtimox
Benznidazole
Treatment of toxoplasmosis
Pyrimethamine and sulfadiazine