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Garvey’s Stain for Elastic, Fibrin & Collagen

Garvey's Stain

for Elastic, Fibrin & Collagen

12
steps
19
materials

Materials

Stock Verhoeff A

MaterialAmount
Hematoxylin3g
Ethanol, absolute100mL

Stock Verhoeff B

MaterialAmount
Ferric chloride2.3g
Distilled water100mL

Stock Verhoeff C

MaterialAmount
Potassium iodide4g
Iodine2g
Distilled water100mL

Working Verhoeff

MaterialAmount
Stock solution A3volumes
Stock solution B2volumes
Stock solution C1volume

Polyacid

MaterialAmount
Phosphotungstic acid2g
Distilled water100mL

Acetic water

MaterialAmount
Acetic acid, glacial0.5mL
Distilled water100mL

Picro-mercuric chloride

MaterialAmount
Picric acid, sat. aqu.100mL
Mercuric chloride5g
Distilled water100mL

Erythrocyte stain

MaterialAmount
Lissamine fast yellow1g
Acetic acid, glacial0.5mL
Distilled water100mL

Plasma stain

MaterialAmount
Biebrich scarlet0.75g
Acid fuchsin0.75g
Ponceau 2R0.75g
Acetic acid, glacial0.5mL
Distilled water100mL
MaterialAmount for Var IAmount for Var II
Aniline blue0.5g
Light green SF yellowish2g
Acetic acid, glacial1mL2mL
Distilled water100mL100mL

Tissue Sample

Formol sublimate fixation is preferred, although 10% formalin variants are acceptable. Paraffin sections at 3µ are preferred.

Protocol

  1. Bring sections to water via xylene and ethanol.
    1. Optionally, place into picro-mercuric chloride for 1 hour.
    2. Wash well with warm water to remove picric acid.
  2. Place in verhoeff’s solution for 9 minutes.
  3. Wash with warm tap water for 5 minutes.
  4. Place in lissamine fast yellow for 2 minutes.
  5. Rinse with 0.5% acetic acid.
  6. Place in the plasma stain for 5 minutes.
  7. Rinse with distilled water.
  8. Place in polyacid for 10 minutes.
  9. Rinse with distilled water.
  10. Place in a fiber stain variant for 2 minutes.
  11. Rinse with 0.5% acetic acid.
  12. Dehydrate, clear and mount with a resinous medium.

Expected Results

  • Nuclei  –  black
  • Elastic fibres  –  black
  • Fibrin – young  –  yellow
  • Fibrin – mature  –  red
  • Fibrin – old  –  blue or green
  • Erythrocytes  –  yellow
  • Muscle  –  red
  • Collagen  –  blue or green (some may be red)

Notes

  • Sections should be treated with picro-mercuric chloride if formol sublimate or similar fixation was not used initially.
  • The ferric chloride should be the hexahydrate crystals.
  • Although the iodine content of the Verhoeff elastic stain component may remove any mercury pigment, in methods such as this, some technologists prefer to apply the iodine-thiosulphate sequence before staining.

Safety Note

Prior to handling any chemical, consult the Safety Data Sheet (SDS) for proper handling and safety precautions.

References

  1. Garvey W., et. al., (1987),
    A combined elastic, fibrin and collagen stain
    Stain Technology, V. 62, No 6, pp 365-367.