diagnosis Flashcards
– concentrates helminth eggs, larvae
and protozoan cysts
Formalin-Ether technique
sample for Acanthamoeba species
Cerebrospinal fluid
collection for CSF
lumbar tap
collection: hydatid cyst and liver amoebic abscess
Liver aspirate-
collection: Giardiasis and Strongyloidiasis infection
b) Duodenal aspirate
collection for duodenal aspirate
endoscopy
Duodenal drainage or “String test”: duodenal contents collected for
Giardia and Strongylode
Tissue aspirates: Duodenal aspirate-
collectin: Sigmoidoscopy: Schistosomiasis, Amoebiasis, Balantidiasis and Shigellosis
(Large intestines)
Tissue aspirates:
Duodenal aspirate
T.spiralis phase: Can also be known as the incubation/ intestinal invasion
INTESTINAL PHASE
for concentration of
microfilariae’ utilizes venous blood as specime
- Knott Concentration Technique
T.spiralis phase: ✓ first week
✓ small intestinal edema and inflammation
. Intestinal Phase
T.spiralis phase: Signs and symptoms: nausea, vomiting, abdominal pain,
diarrhea, headache and fever, myalgia
Splenomegaly in severe case can also be found as well as
gastric and intestinal hemorrhages
INTESTINAL PHASE
T.spiralis phase: Aka larval migration and muscle invasion
MIGRATION PHASE
T.spiralis phase: Happens up to the 6th week of infection with the following signs
and symptoms:
o High fever (40oC)
o Blurred vision as well as ocular disturbances
MIGRATION PHASE
T.spiralis phase: Cough, pleural pains
Eosinophilia (15-40% for 1 month)
4th to 8th week: deat
MIGRATION PHASE
T.spiralis phase:Acute local inflammation
Edema and pain of musculature
muscular phase
T.spiralis phase: Larval encystation
In 3 -4 days after larval invasion, the muscle fibers will become
edematous, spinle shape, lose their cross striations because
the Trichinallis spiralis larva will already lodged itself into the
muscle fibers.
muscular phase
T.spiralis phase: Fever, weakness, pain and other symptoms start to abate.
Full recovery is expected in this phase since trichinellosis is a
self-limiting disease.
ENCYSTMENT/ ENCAPSULATION PHASE
This is done when meat is suspected of harboring the existed
larvae of trichinella and feeding the meat to the albino rats.
This is done when meat is suspected of harboring the existed
larvae of trichinella and feeding the meat to the albino rats.
T.spiralis phase: Self-limiting disease: eventually Trichinella spiralis will die. It
just has a specific life cycle once it enters the human body, it
will undergo its life cycle and during this phase the parasite
will die.
ENCYSTMENT/ ENCAPSULATION PHASE
Observation is done 14 days after inoculation for the presence
of female worm in the duodenum, and larvae in the muscles
of the experimental animal.
Beck’s Xenodiagnosis
Disease:
o Capillariasis or Mystery Disease
o Malabsorption Syndrome
Flattening of the villi
CAPILLARIA PHILIPPINENSIS
T.trichuria main habitat
cecum and appendic
similar to that of T. trichiura
CAPILLARIA PHILIPPINENSIS