Artefacts

In stool

Charcot-Leyden crystal Narrow, lozenge-shaped crystals in stool (Unstained).

Fatty acid crystal Narrow, fusiform crystal in faeces (Unstained).

Dicrocoelium sp. Human infections occur but most of the time it is a false

parasitosis due to the ingestion of animal (sheep) liver. An asymmetric trematode egg with a thick brownish shell in stool.

One pole has an operculum. Length: 40µm (Unstained).

Morel Spores of morel in a sheath (Unstained).

Plant hair Plant hair in stool. This artefact suggests a larva of

Strongyloides stercoralis. However, one extremity is not rounded but broken off irregularly (Unstained).

Pollen Pollen in stool. These elements may suggest eggs of

Taenia spp., but inner structure is different (Unstained).

Pollen Pollen in stool. These elements may suggest eggs of

Taenia spp., but inner structure is different (Unstained).

Starch Starch in faeces stains dark-blue with Lugol.

Tuber sp. Dark brown spore of a truffle (Unstained).

Vegetal ring Vegetal ring in stool. Polygonal, rounded or ovoid

rings with a thick wall and variable size. There is no typical inner structure (Unstained).

Vegetal spiral vessel Vegetal spiral vessel of variable size in faeces

(stained with Lugol).

Wooden spiral vessel Wooden spiral vessel of variable size in faeces

(Unstained).

Wooden spiral vesselWooden spiral vessel of variable size in faeces

(Unstained).