INTESTINAL FLUKE: HETEROPHYES HETEROPHYES

H. heterophyes

Smallest trematode of man

deadliest;

heart, spinal cord, or brain

_________ trematode because it can travel to the __________________ through the bloodstream.

heterophyid myocarditis;

15%

In the heart – it can cause ______________, a type of heart inflammation which accounts for ___ lethal heart disease in the Philippines

Cardiac Heterophyidiasis;

valves;

parasitic myocardial infarction

• Causes __________________

• Joined at portal vein, Heterophyids are trapped at the ______ of the heart, causes blockage until the heart stops beating, this is called parasitic myocardial infarction

• Von Siebold’s fluke

• Dwarf Instestinal Fluke

Common name

• Cerithidea

• Pironella

1st IH

Cyprinoid (Fresh water fish)

2nd IH

• Abdominal pain

• Mucous diarrhea

• Ulceration of intestinal wall due to their small size

Pathology

Has integumentary scales

Adult morphology: Integument

• Has 3 suckers

  1. Oral

  2. Ventral

  3. Genital/Gonotyl sucker located on the left posterior border

• Oral sucker is smaller than Ventral Sucker

Adult morphology: Suckers

• Round/oval

• Side-by-side

Adult morphology: Testes

Lobed

Adult morphology: Uterus

• Operculated, mature

• Old-fashioned light bulb shape

• Very small ova

• Resembles C. sinensis ova

Egg