Term
| perianal pruritus, no eosinophilia |
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Definition
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Term
| abdominal pain, nausea, diarrhea, anemia, eosinophilia, rectal prolapse |
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Definition
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Term
| mechanical and immune-mediated damage, eosinophilia, abdominal pain and obstruction, URI, systemic symptoms, emerges from orifices |
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Definition
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Term
| mechanical and immune-mediated damage, eosinophilia, abdominal pain, URI, skin rash, hypochromic anemia |
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Definition
| Ancylostoma duodenale, Necator americanus |
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Term
| mechanical and immune-mediated damage // post infection...1d: feet pruritus, 6d: bronchitis, 17d: abdominal pain and eosinophilia, 18d: diarrhea/constipation, 23-27d: larvae detectable in stools, 32d: bloody stool and LRQ pain // granuloma formation, larva currens, hyperinfection, bacteremia // chronic, silent infection may present acutely in immunosuppressed pts and may die within 140 days |
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Definition
| Strongyloides stercoralis |
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Term
| severe muscle pain, fever, marked eosinophilia, serum sickness-like symptoms (facial edema, splinter hemorrhages) |
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Definition
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Term
| severe epigastric pain, nausea vomiting 5-8h post-sushi-ingestion; swollen, hemorrhagic, eosinophilic granulomata |
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Definition
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Term
| mostly asymptomatic; CNS symptoms, GI symptoms, anemia, weight loss, malabsorption, B12 deficiency; post-sushi ingestion |
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Definition
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Term
| post-beef ingestion; mostly asymptomatic; changes in appetite |
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Definition
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Term
| adult tapeworm will cause mild GI symptoms // cysticercus will cause severe symptoms depending on where it deposits (i.e. cysticercus in eye) |
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Definition
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Term
| SE Asia // pruritic skin rash with multiple penetration, systemic symptoms when disseminated; acute (Katayama syndrome): serum-sickness like, IC deposition, abdominal pain, splenomegaly; chronic: splenomegaly, portal hypertension, granuloma formation, pulmonary hypertension, CNS (epilepsy, paraplegia), and nephropathy symptoms // ALT and AST are normal |
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Definition
| Schistosomiasis japonicum |
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Term
| Korea, China, Japan, Taiwan, Vietnam // systemic symptoms (fever, chills), hepatomegaly, jaundice, adenoma of bile ducts, cholangiocarcinoma, calculus leads to Salmonella typhi infection and sepsis, pancreatic duct obstruction leads to pancreatitis |
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Definition
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Term
| cosmopolitan //gradual onset; systemic symptoms (weight loss, malaise, edema, hyperemia), GI symptoms (diarrhea, dysentery, flask ulcers in cecum and recto-sigmoid colon, abdominal cramps, tenesmus), ameboma (1% freq), hepatomegaly, no dehydration and no fecal leukocytes // extraintestinal symptoms include abscesses (necrotizing lesions with peripheral trophozoites) in liver but no cysts |
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Definition
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Term
| tropics, subtropics // pigs are reservoirs // mostly asymptomatic // circular lesions with raised borders found in colon similar to flask ulcers of E. histolytica, no extraintestinal lesions, diarrhea, dysentery, fever |
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Definition
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Term
| self-limited watery diarrhea of 1-2wks in healthy pts; severe diarrhea in AIDS pts; weight loss; acid-fast oocysts in stools |
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Definition
| Cryptosporidium parvum, Cyclospora cayetanensis, Cycloisospora belli |
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Term
| cosmopolitan, travelers, MSM // explosive diarrhea after 1-3 wks incubation, no appetite, malabsorption, flatulence, low-grade fever, nausea, vomiting // risk factors: achlorydia, low sIgA |
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Definition
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Term
| Africa // pruritic skin rash with multiple penetration, systemic symptoms when disseminated; acute (Katayama syndrome): serum-sickness like, IC deposition, abdominal pain, splenomegaly; chronic: UG (difficult and painful micturation, ulcerated mucosa, cystitis, hematuria, carcinoma), liver/spleen (splenomegaly, portal hypertension, granuloma formation, hemolytic anemia), pulmonary hypertension, and CNS (epilepsy, paraplegia) symptoms // ALT and AST are normal |
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Definition
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Term
| pruritic skin rash with multiple penetration of non-human pathogenic strains, Katayama syndrome |
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Definition
| cercarial dermatitis (Schistosoma) |
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Term
| no tissue migration, does not free-live in soil // adult in cecum; eggs are laid on perianal skin; eggs get airborne and are ingested; eggs hatch in small gut; larvae migrate to cecum |
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Definition
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Term
| no tissue migration, does not free-live in soil // adults attach in cecum (detach, reattach), eggs passed in stool, eggs mature in soil for 10d, eggs are ingested, eggs hatch in small gut and larvae migrate to cecum |
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Definition
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Term
| tissue migration, does not free-live in soil // adults in small gut, eggs passed in stool, eggs mature in soil for 10d, eggs are ingested, eggs hatch in small gut, larvae travel to heart and lungs, coughed up, and swallowed |
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Definition
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Term
| tissue migration, free lives in soil // adults attach to small gut (and do not move), lay eggs, eggs pass in stools, eggs hatch in soil, rhabitiform larvae are free feeding, filariform larvae penetrate skin, travel to lungs and heart, are coughed up and swallowed, and mature in small gut |
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Definition
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Term
| tissue migration, free lives in soil // adults in colon, lay eggs, eggs hatch in gut, larvae passed in stools, rhabitiform larvae free feed, filariform larvae penetrate skin, travel to heart/lungs, coughed up and swallowed, and mature in colon // larvae penetrate mucosa allowing Gram- bacteria to populate blood |
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Definition
| Strongyloides stercoralis |
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Term
| humans ingest uncooked pork with encysted larvae, larva excyst in stomach, mature in gut, lay larvae, larvae travel to muscle and encyst in muscle; remain infective for 5-10y; humans are dead end hosts |
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Definition
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Term
| adults in stomach of marine mammals, eggs passed in stools, eggs hatch in water, crustaceans eat larvae, fish eat crustaceans and larvae migrate to peritoneal cavity, marine mammals eat fish, larvae mature into adults in stomach // humans eat fish, larvae penetrate stomach mucosa--no maturation, no adults |
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Definition
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Term
| eggs in stool, eggs hatch in freshwater releasing coracidia, crustaceans eat coracidia and they mature to procercoid, fish eat crustaceans and procercoid migrates to muscle and matures to plecocercoid; human eats fish and plercoceroid attaches to small gut |
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Definition
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Term
| adult in small gut, gravid proglottids in feces, gravid proglottids ruptures releasing eggs, cows eat eggs, eggs hatch into oncospheres, oncospheres travel to muscle and become cysterci in cow muscle, humans eat beef and cysticerci mature into adults, adults attach to gut mucosa |
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Definition
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Term
| humans can be an intermediate host (cysticercosis) as well // adult in small gut, eggs/gravid proglottids in stool, pig eats eggs, eggs hatch into oncospheres, oncospheres travel to muscle and become cysticerci in 3-4mo, humans eat pork, cysticerci become adults in small gut // autoinfection: adult's gravid proglottids can be carried back into stomach via reverse peristalsis, hatch into eggs, etc.; or via superinfection with fecal-oral contamination |
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Definition
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Term
| adults in colon/bladder, eggs pass in feces, eggs hatch into miracidia, miracidia infect snails and become cercariae, cercariae penetrate humans and become schistosomula, schistosomula travels to liver first then heart/lung, then to colon/bladder // male, when with female, sheds tegument to prevent Ab/C' binding by producing discoid and membranous bodies; males' spiny tubercles are more pronounced and numerous when female is not present; female migrates to male following chemotactic lipid gradient |
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Definition
| Schistosomiasis japonicum/hamabotium/mansoni |
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Term
| adults in bile duct, eggs in feces, snails eat eggs, fish eat snails and eggs become cercariae, cercariae encyst in fish muscle and become metacercariae, humans eat fish, metacercariae excyst in duodenum, travel to bile duct and mature into adults |
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Definition
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Term
| cyst is heat, low pH, and chlorine resistant; and is resistant to C'-mediated lysis // only cysts are found in gut lumen // produces lectin, neuraminidase, and glycosidase for attachment; collagenase and amebopore to disrupt enterocyte layer; and phosphoglucomutase with beta-band // erythrophagocytosis |
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Definition
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Term
| cholera-like toxin; colonizes all of GI |
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Definition
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Term
| non-invasive, attaches to mucosa like a suction cup // villi blunting |
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Definition
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