Paragonimus westermani eggs :
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- range from 80 to 120 µm long by 45 to 70 µm wide.
- They are yellow-brown, ovoid or elongate, with a thick shell, and often asymmetrical with one end slightly flattened.
- At the large end, the operculum is clearly visible.
- The opposite (abopercular) end is thickened.
- The eggs are unembryonated when passed in sputum or feces
