Parasitic diseases

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•Chagas disease

T. Cruzi

Reduvid bug

Transmitted by fecal material

Romana's sign: eye swelling

•African sleeping sickness

Tsetse fly

Winterbottom's sign: posterior cervical LAD (Gambiense)

•Swimmer's itch

Cercaria (non-human schistisomes)

Exposed areas

•Seabather's eruption

Under bathing suit

-Nematocysts of the larval forms of sea anemones: Edwardsiella lineata

Thimble jellyfishe: Linuche unguiculata

Cnidaria larve get trapped, release toxin

•Cysticercosis

Humans can become intermediate host and then get invasive disease

•Enterobius vermicularis

Nocturnal perianal itch (pinworm)

•Larva Currens

Thumbprint sign: periumbilical purpura

Strongyloides stercoralis

•Dracunculosis

Copepods (Cyclops spp)

Metro and excision

•Loa loa

Calabar swelling: localized angioedema

Mature worm migrates across eye

•Onchocerciasis (River blindness)

Elephant skin

Lizard skin

Leopard skin

Skin snip

Mazotti test: give DEC 50 mg, get reaction in patient

•Trichinosis

Trichinella spiralis

Splinter hemorrhages

Pork, polar bear, walrus

•M. Opercularis

Wolly caterpillar

Train-track hemorrages

-'Erucism' inflammation around hairs, can be chronic, can cause systemic effects

•Cimex lenticularis

Bedbugs

Hep B carrier's

•Body lice

Only seen in seams of clothing

•Myiasis

Dermatobia hominis

•Odd question of Collembola (Springtail) implicated in one case series (J NY Entomol Soc, 2004)

-Pimozide (diphenylbutylpiperidine class antipsychotic) at 1–12 mg daily


7/2/09 PANI