Parasitic diseases
•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