Clonorchis sinensis – Egg

  • Detected in faecal specimens of infected human
  • Eggs embryonated when passed
  • Egg is infective to snail intermediate host
Diagnostic Features
    • Size: 30 µm x l6 µm (range: 27-35 µm x 11-20 µm) – smallest digenean eggs found in human
    • Shape: Oval or elongated with broad rounded posterior end – bulb shaped
    • Colour: Yellow brown
    • Convex operculum that rests on a thickened collar
    • Small knob-like projection at posterior end
    • Contains a miracidium when passed

Magnification x4

Magnification x10

Magnification X40