Diagnostic Findings [Last Modified: ]
Trichinellosis
[Trichinella spiralis] [T. pseudospiralis]
[T. nativa] [T. nelsoni] [T. britovi]
Causal Agent Life Cycle Geographic Distribution Clinical Features Laboratory Diagnosis Treatment

Microscopy

Trichinella encysted larva Trichinella encysted larva
A B

A, B: Encysted larvae of Trichinella in pressed muscle tissue sample.  The coiled larvae can be seen inside the cysts.

Trichinella larva Trichinella larva
C D

C, D: Larvae of Trichinella, freed from their cysts, typically coiled; length: 0.8 to 1 mm.  Alaskan bear.
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