Heterophyes heterophyes (continued)
OVA
SIZE: 30 x 15 mcm (small, 12 end to end per HPF), resemble ova of the Opisthorchis
sp.
SHAPE: Vaselike.
COLOR: Yellowish-brown.
OPERCULUM: Present, pronounced.
CONTENT: Miracidium.
ADULT
SIZE: 1.0 to 1.7 mm long by 0.3 to 0.7 mm wide (very small).
SHAPE: Gourd-like.
COLOR: Grayish.
INTESTINAL CECA: Straight.
CENTERED ACETABULUM
GONOTYL IS PRESENT
Retractile sucker-like structure.
Armed with hooklets.
Figure 3-31. Stages of Heterophyes heterophyes.
MD0842
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