Metagonimus yokogawai (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 (symmetrical).
ADULT
SIZE: 0.8 to 1.4 mm long by 0.4 to 0.7 mm wide.
SHAPE: Gourd-like
COLOR: Grayish
INTESTINAL CECA: Straight
TESTES: Oval and oblique
OFF-CENTER ACETABULUM
Figure 3-29. Stages of Metagonimus yokagawai.
MD0842
3-35