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Trematodes Flashcards

1
Q

aka FLUKES

A

TREMATODES

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2
Q

appearance of adult TREMATODES

A

Leaf-like

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3
Q

TREMATODES: monoecious or dioecious

A

Monoecious

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4
Q

Infective stage of trematodes

A

Metacercaria (last larval stage of trematodes)

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5
Q

Means of trematodes in attaching themselves to the host

A

2 suckers (oral and ventral/acetabulum)

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6
Q

2 suckers of trematodes

A

Oral sucker
Ventral sucker (acetabulum)

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7
Q

How many suckers does trematodes have? Is there an exception?

A

2 suckers (oral and ventral/acetabulum)

Exception: Heterophyes heterophyes = 3rd sucker: genital sucker/gonotyl

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8
Q

No. and type of host required by trematodes

A

2 INTERMEDIATE HOSTS

1st IH: Snail
2nd IH: Fish, crabs, vegetation, snail

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9
Q

General MOT of trematodes

A

Ingestion of the 2nd intermediate host infected with Metacercaria

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10
Q

Give some habitats of trematodes

A

Liver
Intestines
Pancreas
Lungs

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11
Q

describe the egg stage of trematodes

A

Eggs – has operculum (lid-like; allows exit of larva from the egg when they hatch)

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12
Q

lid-like structure that allows the exit of larva from the egg when they hatch

A

operculum

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13
Q

larval stage of trematodes

A

(5 sub-stages) – “My Sister Rent a Car for Me”
* Miracidium
* Sporocyst
* Redia
* Cercaria
* Metacercaria – infective stage

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14
Q

describe the adult stage of trematodes

A

Oviparous or Oviviparous

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15
Q

Enumerate FASCIOLIDS

A
  • Fasciola hepatica – liver fluke
  • Fasciola gigantica – liver fluke
  • Fasciolopsis buski – intestinal fluke
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16
Q

Enumerate HETEROPHYIDS

A
  • Clonorchis sinensis
  • Opisthorchis felineus
  • Heterophyes heterophyes
  • Metagonimus yokogawai
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17
Q

Enumerate INTESTINAL FLUKES

A

Fasciolopsis buski
Echinostoma ilocanum
Heterophyes heterophyes
Metagonimus yokogawai

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18
Q

Enumerate LIVER FLUKES

A

Fasciola hepatica
Fasciola gigantica
Clonorchis sinensis
Opisthorchis felineus
Dicrocoelium dendriticum/ lanceolata

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19
Q

LUNG FLUKE

A

Paragonimus westermani

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20
Q

PANCREATIC FLUKE

A

Eurytrema pancreaticum

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21
Q

Enumerate SCHISTOSOMES / BLOOD FLUKES

A

Schistosoma japonicum
Schistosoma mansoni
Schistosoma haematobium
Schistosoma mekongi
Schistosoma intercalatum

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22
Q

aka Giant Intestinal Fluke

A

Fasciolopsis buski

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23
Q

Largest fluke parasitizing man

A

Fasciolopsis buski

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24
Q

larger than F. gigantica

A

Fasciolopsis buski

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25
FINAL HOST of Fasciolopsis buski
Man
26
1ST IH of Fasciolopsis buski
Snails: * Segmentina * Hippeutis
27
2ND IH of Fasciolopsis buski
Vegetation: * Water Caltrop (Trapa bicornis) * Water Chestnut (Eliocharis tuberosa) * Kangkong/Morning Glory (Ipomea obscura) * Lotus (Nymphaea lotus) * Bamboo shoots (Zizania latifolia)
28
Habitat of Fasciolopsis buski
Small intestine
29
Infective stage of Fasciolopsis buski
Metacercaria
30
PATHOLOGY: Fasciolopsis buski
Abdominal discomfort Diarrhea Edema
31
Lab dx of Fasciolopsis buski
Stool examination Concentration techniques Molecular techniques
32
Drug of choice for Fasciolopsis buski
Praziquantel
33
Adult form has: - simple intestinal ceca - 2 dendritic testes in tandem - branched ovaries
Fasciolopsis buski
34
Egg of Fasciolopsis buski
Indistinguishable from other fasciolid ova
35
aka Garrison’s Fluke
Echinostoma ilocanum
36
Discovered by Philip Garrison among prisoners of Bilibid Prison in Manila, PH
Echinostoma ilocanum
37
FINAL HOST of Echinostoma ilocanum
Man
38
1ST IH of Echinostoma ilocanum
Snails: * Gyraulus convexiusculus * Hippeutis umbilicalis
39
2ND IH of Echinostoma ilocanum
Snails: * Kuhol (Pila luzonica) * Susong Pampang (Vivipara angularis)
40
Habitat of Echinostoma ilocanum
Small intestine
41
Infective stage of Echinostoma ilocanum
Metacercaria
42
PATHOLOGY: Echinostoma ilocanum
Abdominal discomfort Chronic mucous diarrhea Eosinophilia
43
Lab dx of Echinostoma ilocanum
Stool examination Concentration techniques Molecular techniques
44
Drug of choice for Echinostoma ilocanum
Praziquantel
45
Adult is described having Circumoral disk with crown of spines (49-51 spines) surrounding the oral sucker
Echinostoma ilocanum
46
Describe Echinostoma ilocanum egg
Germ ball egg with triangular operculum
47
Germ ball egg with triangular operculum
Echinostoma ilocanum egg
48
aka Von Siebold’s Fluke Heterophyid Fluke
Heterophyes heterophyes
49
Smallest trematode of man
Heterophyes heterophyes
50
Deadliest trematode (can migrate to brain, heart, spinal cord)
Heterophyes heterophyes
51
Heterophyes heterophyes migration to the heart (15% of the fetal heart disease)
Heterophyid myocarditis
52
FINAL HOST of Heterophyes heterophyes
Man
53
1ST IH of Heterophyes heterophyes
Snails: * Cerithidea * Pirenella
54
2ND IH of Heterophyes heterophyes
Fishes: * Balanak (Mugil spp.) * Tilapia (Tilapia spp.) * Kanduli (Arius manilensis)
55
HABITAT of Heterophyes heterophyes
Small intestine
56
INFECTIVE STAGE of Heterophyes heterophyes
Metacercaria
57
PATHOLOGY: Heterophyes heterophyes
Abdominal pain Mucous diarrhea Ulceration of intestinal wall
58
Lab dx for Heterophyes heterophyes
Stool examination Concentration techniques Molecular techniques
59
Drug of choice for Heterophyes heterophyes
Praziquantel
60
Adult has: - genital sucker surrounding genital pore - 3rd sucker: genital sucker (gonocyte/gonotyl)
Heterophyes heterophyes
61
Old-fashioned light bulb egg
Heterophyes heterophyes Metagonimus yokogawai
62
Different characteristic from other heterophyids: NO protuberance at the abopercular end
Old-fashioned light bulb egg of Heterophyes heterophyes and Metagonimus yokogawai
63
how do you differ M. yokogawai egg with H. heterophyes
M. yokogawai: thinner shell (still not a basis for differentiation)
64
aka Yokogawa’s Fluke
Metagonimus yokogawai
65
1ST IH of Metagonimus yokogawai
Snails: * Semisulcospira * Thiara * Hua
66
2ND IH of Metagonimus yokogawai
Fishes: * Salmonoid * Cyprinoid
67
Habitat of Metagonimus yokogawai
Small intestine
68
Infective stage of Metagonimus yokogawai
Metacercaria
69
PATHOLOGY: Metagonimus yokogawai
Abdominal pain Mucous diarrhea Ulceration of intestinal wall
70
Lab dx for Metagonimus yokogawai
Stool examination Concentration techniques Molecular techniques
71
Drug of choice for Metagonimus yokogawai
Praziquantel
72
Adult is: Pyriform-shaped Scaly spines NO gonotyl
Metagonimus yokogawai
73
Describe the egg of Metagonimus yokogawai
Old-fashioned light bulb
74
Describe the egg of Heterophyes heterophyes
Old-fashioned light bulb
75
Describe the adult form of Fasciolopsis buski
Has simple intestinal ceca 2 dendritic testes in tandem Branched ovaries
76
Describe the adult form of Echinostoma ilocanum
Circumoral disk with crown of spines (49-51 spines) surrounding the oral sucker
77
No. of spines of Echinostoma ilocanum
49-51 spines
78
Describe the adult form of Heterophyes heterophyes
Has genital sucker surrounding genital pore 3rd sucker: genital sucker (gonocyte/gonotyl)
79
Describe the adult form of Metagonimus yokogawai
Pyriform-shaped Scaly spines NO gonotyl
80
Intestinal fluke with fishes as their 2nd IH
Heterophyes heterophyes Metagonimus yokogawai
81
Intestinal fluke with snails as their both 1ST and 2ND IH
Echinostoma ilocanum
82
Intestinal fluke with vegetation as their 2ND IH
Fasciolopsis buski
83
aka Sheep Liver Fluke Temperate Liver Fluke
Fasciola hepatica
84
Natural/final host of Fasciola hepatica
Sheep
85
1st IH of Fasciola hepatica
Snails: * Lymnea philippinensis * Lymnea auricularia rubiginosa
86
Accidental host of Fasciola hepatica
Man
87
2nd IH of Fasciola hepatica
Vegetations: * Kangkong (Ipomea obscura) * Water cress (Nasturtium officinale)
88
Habitat of Fasciola hepatica
Liver parenchyma, gall bladder
89
Infective stage of F. hepatica
Metacercaria
90
Pathology of F. hepatica
Fascioliasis / sheep liver rot Liver atrophy Pharyngeal suffocation
91
result of the temporary lodgment of F. hepatica in pharynx
Pharyngeal suffocation
92
Pharyngeal suffocation term originated from Lebanon
Halzoun
93
Pharyngeal suffocation term originated from Sudan
Mararra
94
Lab dx for F. hepatica
Stool examination Liver biopsy PCR
95
Drug of choice for F. hepatica
Bithionol Triclabendazole
96
Adult form: - With cephalic cone - Well-developed shoulder
Fasciola hepatica
97
Adult form: - Larger than F. hepatica - Shorter cephalic cone - Less developed shoulder
Fasciola gigantica
98
describe larval stage of both F. hepatica and gigantica
ALL STAGES PRESENT
99
with Hen’s egg shape
ALL FASCIOLIDS EGG
100
Describe F. hepatica adult
With cephalic cone Well-developed shoulder
101
Describe F. gigantica adult
Larger than F. hepatica Shorter cephalic cone Less developed shoulder
102
describe fasciolid eggs
* Large * Operculated * Unembryonated * Yellowish-brown
103
aka Giant Liver Fluke Tropical Liver Fluke
Fasciola gigantica
104
Largest liver fluke
Fasciola gigantica
105
Natural/final host of Fasciola gigantica
Local cattle, herbivores
106
Accidental host of Fasciola gigantica
Man
107
1ST IH of Fasciola gigantica
Snails: * Lymnea philippinensis * Lymnea auricularia rubiginosa
108
2ND IH of Fasciola gigantica
Vegetations: * Kangkong (Ipomea obscura) * Water cress (Nasturtium officinale)
109
Habitat of Fasciola gigantica
Liver parenchyma, gall bladder
110
111
Infective stage of Fasciola gigantica
Metacercaria
112
Pathology of Fasciola gigantica
Fascioliasis / sheep liver rot Liver atrophy Pharyngeal suffocation
113
Lab dx for Fasciola gigantica
Stool examination Liver biopsy PCR
114
Drug of choice for Fasciola gigantica
Bithionol Triclabendazole
115
aka Oriental Liver Fluke Chinese Liver Fluke
Clonorchis sinensis
116
Most important liver fluke of man
Clonorchis sinensis
117
Parasite that is a potential carcinogen
Clonorchis sinensis
118
Natural/final host of Clonorchis sinensis
Man and other fish-eating vertebrae
119
1ST IH of Clonorchis sinensis
Snails: * Parafossarulus * Bulinus * Semisulcospira * Alocinma * Thiara * Melanoides
120
2ND IH of Clonorchis sinensis
Fishes: * Cyprinidae
121
Habitat of Clonorchis sinensis
Liver parenchyma Gall bladder Pancreatic duct
122
Infective stage of Clonorchis sinensis
Metacercaria
123
pathology of Clonorchis sinensis
* Bile duct obstruction * Periductal fibrosis * Gallbladder & liver carcinoma * Liver dysfunction
124
Disease state mostly caused by C. sinensis
Gallbladder & liver carcinoma (Hepatocellular carcinoma, Cholangiocarcinoma)
125
caused by C. sinensis; occurs on severely infected px over a long time period
Liver dysfunction
126
Lab dx for Clonorchis sinensis
Stool Exam Serologic tests (ELISA, EIA) Molecular tests (PRC)
127
Drug of choice for Clonorchis sinensis
Praziquantel Albendazole
128
Describe the morphology of adult Clonorchis sinensis
GENERAL TO HETEROPHYIDS: Leaf-like with transparent tegument, has Vitellaria in the middle third of the body SPECIFIC: 2 large, highly branched testes arranged in tandem
129
Has 2 large, highly branched testes arranged in tandem
Clonorchis sinensis
130
Pitcher-shaped/old-fashioned electric light bulb-shaped
ALL HETEROPHYIDS EGGS
131
Describe HETEROPHYIDS EGGS
* Yellowish-brown, ovoid * Distinct convex operculum that fits to the thickened rim of the eggshell * Thick rim located around the operculum (shoulders) * Small, comma-shaped protuberance at the abopercular end
132
aka Cat Liver Fluke Siberia Liver Fluke
Opisthorchis felineus
133
First described by McConnell
Opisthorchis felineus
134
aka Southeast Asian Liver Fluke
*Opisthorchis viverrini
135
Natural/final host of Opisthorchis felineus
Cats
136
1ST IH of Opisthorchis felineus
Snails: * Bithynia
137
2ND IH of Opisthorchis felineus
Fishes: * Cyprinidae * Cobitidae
138
Habitat of Opisthorchis felineus
Liver parenchyma Gall bladder Pancreatic duct
139
Infective stage of Opisthorchis felineus
Metacercaria
140
Pathology of Opisthorchis felineus
Bile duct obstruction Periductal fibrosis
141
Lab dx for Opisthorchis felineus
Stool Exam Serologic tests (ELISA, EIA) Molecular tests (PRC)
142
Drug of choice for Opisthorchis felineus
Praziquantel Albendazole
143
Describe Opisthorchis felineus adult
GENERAL TO HETEROPHYIDS: Leaf-like with transparent tegument, has Vitellaria in the middle third of the body SPECIFIC: Lobate testes arranged obliquely
144
Adult has lobate testes arranged obliquely
Opisthorchis felineus
145
gravid uterus/uterus filled with ova
Vitellaria
146
aka Lanceolate Lancet Fluke
Dicrocoelium dendriticum/ lanceolata
147
Dicrocoelium spp. responsible for human infection in West Africa
Dicrocoelium hospes
148
Natural/final host of Dicrocoelium dendriticum/ lanceolata
Cattle/Sheep Man
149
1ST IH of Dicrocoelium dendriticum/ lanceolata
Snails: * Cochlicopa * Helix * Xerolenta * Zebrina
150
2ND IH of Dicrocoelium dendriticum/ lanceolata
Black Ants: * Formica fusca
151
Habitat of Dicrocoelium dendriticum/ lanceolata
Liver parenchyma Gall bladder *Biliary passage of the liver
152
Infective stage of Dicrocoelium dendriticum/ lanceolata
Metacercaria
153
Pathology of Dicrocoelium dendriticum/ lanceolata
Cirrhosis Liver Fibrosis
154
Lab dx for Dicrocoelium dendriticum/ lanceolata
Liver Biopsy PCR
155
Describe the Dicrocoelium dendriticum/ lanceolata ADULT
Lancet-shaped (flattened and tapered at both ends) Transparent
156
Adult is lancet-shaped (flattened and tapered at both ends) and transparent
Dicrocoelium dendriticum/ lanceolata
157
Describe Dicrocoelium dendriticum/ lanceolata EGG
Thick-shelled Operculated Deep golden brown
158
With thick-shelled, operculated, deep golden brown egg
Dicrocoelium dendriticum/ lanceolata
159
aka Oriental Lung Fluke
Paragonimus westermani
160
parasite common in Sorsogon
Paragonimus westermani
161
Habitat of Paragonimus westermani
lungs
162
Final host of Paragonimus westermani
Man
163
1st IH of Paragonimus westermani
Snails: * Antemelania asperata (formerly Brotia asperata) * Antemelania dactylus
164
2nd IH of Paragonimus westermani
Crabs: Sundathelphusa philippina (formerly Parathelphusa grapsoides)
165
Infective stage of Paragonimus westermani
Metacercaria
166
Describe Paragonimus westermani ADULT
Coffee-bean shaped Wavy or succulent intestinal ceca
167
Adult is coffee-bean shaped and has wavy or succulent intestinal ceca
Paragonimus westermani
168
Egg has thickened abopercular end and flattened but prominent operculum
Paragonimus westermani
169
Egg is similar with Diphyllobothrium latum (cestode) ova
Paragonimus westermani
170
Describe Paragonimus westermani EGG
Thickened abopercular end Flattened but prominent operculum Similar with Diphyllobothrium latum (cestode) ova
171
Pathology of Paragonimus westermani
Paragonimiasis (Pulmonary distomiasis)
172
Chronic cough and hemoptysis (cough with blood); Resembles TB; caused by P. westermani
Paragonimiasis (Pulmonary distomiasis)
173
Lab dx for P. westermani
Sputum Examination Stool exam (DFS) Chest X-ray Serodiagnosis (ELISA, IB) Molecular Tests (PCR)
174
what must be observed in sputum exam to confirm P. westermani presence?
ova + Charcot-Leyden crystals (eosinophil degradation product) may also look for adult
175
why is stool exam also necessary for lab dx of P. westermani?
sputum ingestion → intestines → stool
176
Habitat of Eurytrema pancreaticum
Pancreatic duct
177
Final host Eurytrema pancreaticum
Cattle/Sheep
178
1st IH of Eurytrema pancreaticum
Snails
179
2nd IH of Eurytrema pancreaticum
Ants Grasshoppers Mantis Crickets
180
Infective stage of Eurytrema pancreaticum
Metacercaria
181
Describe Eurytrema pancreaticum ADULT
Ruffled margins
182
Describe Eurytrema pancreaticum EGG
Operculated, embryonated
183
Adult has ruffled margins
Eurytrema pancreaticum
184
Fluke with operculated and embryonated egg
Eurytrema pancreaticum
185
General characteristics are different from the other flukes
SCHISTOSOMES / BLOOD FLUKES
186
Elongated/cylindrical DIOECIOUS trematode
SCHISTOSOMES / BLOOD FLUKES
187
trematode with Only 1 IH, which is SNAIL
SCHISTOSOMES / BLOOD FLUKES
188
IH of SCHISTOSOMES
snails
189
infective stage of schistosomes
Miracidia (infective stage to the snail) Cercaria (infective stage to the final/definitive host)
190
infective stage of schistosomes to the snail
miracidia
191
infective stage of schistosomes to final/definitive host
cercaria
192
MOT of schistosomes
skin penetration
193
Most romantic parasite
schistosomes / blood flukes (since they are always in copula or perpetual copulation)
194
describe adult female schistosomes
oviviparous (lay mature ova)
195
describe adult male schistosomes
have gynecophoral canal/grooves (where the female is held); larger than females
196
characteristic of the eggs of schistosomes
non-operculated (unlike other trematodes)
197
larval stages of schistosomes
MIRACIDIA —> SPOROCYST —> CERCARIA no redia and metacercaria
198
habitat of adult schistosomes
blood vessels
199
parasite discovered in Mekong River
Schistosoma mekongi
200
Eggs resembles egg of S. japonicum, but smaller
Schistosoma mekongi
201
Adults of this parasite reside in small intestines venules
S. mekongi
202
Eggs resemble egg of S. haematobium, but with equatorial/central bulge
Schistosoma intercalatum
203
Adults of this parasite reside in colon venules (large intestine)
Schistosoma intercalatum
204
aka Oriental Blood Fluke
Schistosoma japonicum
205
Parasite common in Mindoro, Leyte, Sorsogon, Mindanao
Schistosoma japonicum
206
has the SMALLEST EGG among blood flukes
Schistosoma japonicum
207
LARGEST blood fluke in terms of size
Schistosoma japonicum
208
IH of Schistosoma japonicum
SNAILS: Oncomelania hupensis quadrasi
209
Habitat of Schistosoma japonicum
BV: Superior mesenteric vein
210
Infective stage of Schistosoma japonicum
Cercaria (forked tailed larva)
211
a forked tailed larva
Cercaria
212
what happened to the cercaria (forked tailed larva) of schistosomes when they exhibit SKIN PENETRATION?
Tail is removed Became a schistosomule/schistosomula/schistosomulum (tail less cercaria)
213
tail less cercaria
Schistosomule Schistosomula Schistosomulum
214
disease generally caused by schistosomes
Swimmer’s itch (aka Gulf-coast itch, Cercarial itch, Clam digger’s itch)
215
Dermatitis (allergic rxn) with pruritis at the site of cercarial skin penetration caused by schistosomes
Swimmer’s itch (aka Gulf-coast itch, Cercarial itch, Clam digger’s itch)
216
disease/conditions caused by Schistosoma japonicum
Snail Fever, Katayama disease, or Katayama fever Hepatosplenic schistosomiasis Oriental Schistosomiasis Swamp fever
217
systemic hypersensitivity rxn to the schistosomulum migrating through tissue; caused by S. japonicum
Snail Fever, Katayama disease, or Katayama fever
218
most serious consequence of chronic schistosomiasis (caused by S. japonicum)
Hepatosplenic schistosomiasis
219
characterized of hepatomegaly, ascites (inc. peritoneal fluid), portal hypertension, and development of collateral circulation; enlarged tummy in children; caused by S. japonicum
Hepatosplenic schistosomiasis
220
Describe S. japonicum ADULT worm
Largest With smooth integument
221
Describe S. japonicum EGG
Knob-like/curved hook of protuberance on one side (lateral knob) Smallest egg of all schistosoma
222
With the largest adult among blood flukes and has a smooth integument
S. japonicum
223
aka Mansoni Blood Fluke
Schistosoma mansoni
223
Knob-like/curved hook of protuberance on one side (lateral knob); smallest egg of all schistosoma
S. japonicum
224
First reported by Theodore Bilharz
Schistosoma mansoni
225
Final host of Schistosoma mansoni
Man
226
Final host of S. japonicum
Man
227
IH of Schistosoma mansoni
SNAILS: Biomphalaria spp. Australorbis spp. Tropicorbis spp. Planorbis spp.
228
Habitat of Schistosoma mansoni
BV: Inferior mesenteric vein of the colon/rectum
229
Infective stage of S. mansoni
Cercaria
230
MOT of all schistosomes
Skin penetration
231
disease/condition caused by S. mansoni
Intestinal Bilharziasis
232
Describe S. mansoni ADULT worm
Smallest With coarse tuberculation
233
Smallest ADULT fluke with coarse tuberculation
S. mansoni
234
Describe S. mansoni EGG
Light yellowish brown with large lateral spine on one side (rose-thorn appearance)
235
has a rose-thorn appearance of egg; light yellowish brown with large lateral spine on one side
S. mansoni egg
236
schistosomes with similar lab dx due to similarities in habitat
Schistosoma japonicum Schistosoma mansoni (both in mesenteric vein)
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Lab dx for both Schistosoma japonicum and Schistosoma mansoni
Stool Examination Rectal Biopsy – S. mansoni Sedimentation techniques Faust-Meleney’s Egg Hatching Technique (Miracidial hatching test) Circumoval Precipitin Test (COPT) Cercarial Hullen Reaction
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Specific lab dx for S. mansoni
Rectal Biopsy
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aka Miracidial hatching test
Faust-Meleney’s Egg Hatching Technique
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procedure that uses a freshly collected stool or urine then dissolved in non-chlorinated water (presence of chlorine can destroy Schistosoma larva) placed in Erlenmeyer flask, covered, and stand overnight against light Observed: Miracidia swimming at the upper layer of water (ova presence)
Faust-Meleney’s Egg Hatching Technique (Miracidial hatching test)
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Definitive test for Schistosomiasis in PH
Circumoval Precipitin Test (COPT)
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Circumoval Precipitin Test (COPT) Spx: ? Rgt: ? (+): ?
Specimen: Serum Reagent: Lyophilized eggs from rabbit (+): Bleb formation microscopically
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procedure that gives a positive rxn of cercaria shrinking after using a lyophilized cercaria in serum spx
Cercarial Hullen Reaction
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Cercarial Hullen Reaction Spx: ? Rgt: ? (+): ?
Specimen: Serum Reagent: Lyophilized cercaria (+): Shrinking of cercaria
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aka Vesicular Blood Fluke
Schistosoma haematobium
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parasite common in Nile River Valley
Schistosoma haematobium
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Final host of Schistosoma haematobium
Man
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IH of Schistosoma haematobium
SNAILS: Bulinus spp. Physopsis spp. Biomphalaria spp.
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Habitat of Schistosoma haematobium
BV: Vesical, prostatic, uterine venous plexuses of the urinary bladder
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Infective stage of Schistosoma haematobium
Cercaria
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Disease/condition caused by Schistosoma haematobium
Urinary Bilharziasis (Egyptian hematuria)
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condition characterized by hematuria and shows a "sandy patches" in the lower urinary tract caused by S. haematobium
Urinary Bilharziasis (Egyptian hematuria)
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Lab dx for Schistosoma haematobium
Urine Examination using a 24-hour UNPRESERVED urine
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optimized recovery time of S. haematobium in urine
between NOON and 2 PM
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Preferred spx for S. haematobium recovery
24-hour unpreserved urine (appearance of Schistosoma ova in urine is intermittent) *preservation may destroy the ova
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Describe Schistosoma haematobium ADULT worm
With fine tuberculation
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Describe Schistosoma haematobium EGG
Large, prominent terminal spine
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adult schistosome with fine tuberculation
Schistosoma haematobium
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LARGE schistosome egg with prominent terminal spine
Schistosoma haematobium

MTAP 1 (13 decks)

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