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Trematodes, Comparison


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Philippine Medically Important Trematodes,
Tabular Form, Comparison

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Trematodes, Comparison

  1. 1. Notes on Philippine Medically Important Trematodes Meccar Moniem Elino, BSBio IV , Davao Doctors College Instructor: Mrs. Chalee Sienes-Reyes, RMT, MSMT, Ph.D Reference: Philippine textbook of Medical Parasitology 2nd ed.(2004) UP. Edited by Vicente Y. Belizario, Jr. and Winifreda U. de Leon Definitive Diagnostic Common Name 1st IH 2nd IH Host Stage Segmentina and T. bicornis, N. lotus, Humans Fasciolopsis buski Giant Intestinal Fluke snail Plant Egg in stool Hippeutis E. tuberculosa and PigsEchinostoma ilocanum Garrisons Fluke G. Pila luzonica, Eggs in snail convexiusculus, Snail Lymnea Humans stool H. umbilicalis cummingianaArtyfechinostomum malayanumHeterophyes heterophyes Minute Fish Fluke C. chanos (Bangus),Haplorchis taichui Melania juncea, C.bethiacus (Hito), Eggs in snail Thiara riquetti Fishes O. striatus (dalag), S. Human SputumMetagonimus yokogawai Intestinal Fish Fluke (Brackish) canalicatus(danggit), and StoolHaplorchis yokogawai T. nilotica (tilapia) Temperate/SheepLiver Ipomea obscura Human,Fasciola hepatica Lymnea Fluke (Kang Kong), cow, Eggs in snail philippinen-sis, Plants Nastorium officinale cattle, stoolFasciola gigantica Tropical/Giant liver Fluke Lymnea swinhoei (Water Cress) sheep Parafossarulus, Bulimus,Clonorchis sinensis Chinese Liver Fluke snail Semiculcoapira, Fish Fish of Family Humans Alocinma, Cyprinidae (Tilapia and Fish Eggs in Melanoides nilotica) St. Peters eating stool Fish mammalsOpisthorcis felineus Cat Liver Fluke snail Bithynia FishOpisthorcis viverrini Sea Liver Fluke Eggs in Ante-melania SundathelphusaParagonimus westermani Oriental / Lung Fluke snail crabs Human sputum dactylus/asperata philippina and stool Macro-chlamys TechnomyrmexEurytrema pancreaticum Pancreatic Fluke snail Ant Human indica deterquens (ant) Human O. hupensis and eggs inSchistosoma japonicum Oriental Blood Fluke snail X X quadrasi Domestic stool Animals Biomphalaria and eggs inSchistosoma mansoni Mansons Blood Fluke snail X X Human Australorbis stool eggs inSchistosoma haematobium Visceral Blood Fluke snail Bulimus X X Human urine specimen
  2. 2. Ova Adult Pathogenesis Drug of Choice Adult Reddish gray Horse-shape collar of spines (circum oral disk) around the oral suckersEchinostoma ilocanum Straw-colored 49-51 collar spines Integument is covered by plaque like scales Echinostomiasis, general Operculated Simple intestinal caeca intoxication, diarrhea, Ovoid Praziquantel Ulceration to the Similar to Fasciola and attachment site Fasciolopsis buski ova with 43 to 45 collar spines, testes are large with six to nine lobes in tandem. The ovary isA. malayanum small rounded oval anterior to the testes and pre equatorialHeterophyes heterophyes minute operculate intestine start from midpartHaplorchis taichui ovoidal and light elongated, pyriform & grayish 1-1.7 x .3x.4mmMetagonimus yokogawai brown Dyspnea, Rusty/Bloody cuticle covered with scale like spines Small 28-30 x 15-17 micra Sputum, Space Occupying Oral suckerwith thick wall and muscular slight shoulder @ the Lesions, Colicky Praziquantel Genital sucker @ left posterior border with 2 rim of operculum Abdominal Pain andHaplorchis yokogawai ovoid testis post of 5th body subglobose ovary & no abopercular Diarrhea anterior of testis vitellaria with large proturberance polygonal follicles in lateral posterior end Mature when laid Immature operculated Large, broadly Ovate and Narrow at posterior Yellowish brown Fasciolopsiasis, Intestinal end ellipsoidal Obstruction, MarkedFasciolopsis buski no cephalic cone Praziquantel 130-140 x 80-85 micra, Eosinophilia, colic 2-7.5 x .8 - 2cm clear thick shell and Diarrhea and vomiting ALimentary tract simple and do not branch operculated (immature) Longer cephalic zone with conical projectionFasciola hepatica operculated stool Highly Branched (dendritic) intestine 140-150 x 65-90 micra (hepatica) 160-190 x 70-90 micra Biliary colic, Jaundice, (gigantica) Abdominal Pain, Mark Bithionol, Light yellow Biled Eosinophilia, Biliary TractFasciola gigantica strained obstruction Shorter cephalic Zone with conical projection Transparent with thin Highly Branched (dendritic) intestine double walls Contain lecithin granules (immature) Egg operculated mature electric bulb simple or unbranched intestine shape bigger oral sucker than O. felineus Cholangitis, biliaryClonorchis sinensis Posterior has small 2 highly branched denritic testes post cirrhosis, obstructive knob vitellaria: mid 3rd of the intestine jaundice, malignant Praziquantel tea pot lid - shape of yolk gland 10-25 x 2-3mm changes of the liver and operculum; Eggs pancreas passed out via theOpisthorcis felineus common bile duct into Lobate highly branched testes; vitellaria: midOpisthorcis viverrini the liver 3rd Yellowish, Thick Paragonimiasis, Cough, shelled, operculated Body covered with spines Coffee Bean Shape,Paragonimus westermani hemoptysis, Praziquantel with thickened Found in Pairs or in threes in Fibrotic capsules Misdiagnosed as PTB abopercular egg Operculated Thick shelled Pancreatic flukeEurytrema pancreaticum Dark brown in color Stout worm with ruffled margins Pancreatitis Praziquantel Embryonated when oral sucker is larger than the ventral sucker laid Diagnostic TestSchistosoma japonicum Schistomiasis, CercarialSchistosoma mansoni (Next Table) Kato katz, Dermatitis, Hepatosplenic Immunodiagnostic Disease (GranulomatousSchistosoma haematobium Test Reaction)
  3. 3. Major Differences Among Schistosoma spp.Feature S. japonicum S. mansoni S. haematobiumTestes (male) 6-7 in a single file 8 -9 in a zigzag row 4 -5 in groupsOvary (Female) In the middle of the body; contains 50 or more Anterior to the middle of the body; Behind the middle of the body; contains eggs contains 1-3 eggs 20 – 30 eggsIntestine short longest longEgg Lateral knob Lateral spine Terminal spineIntermediate Host Oncomelania Biomphalaria and Australorbis Bulimus (Physopsis)Definitive Host Man and domestic animals Man Man