Jump to content

List of Stains: Difference between revisions

From MedLabWiki
No edit summary
No edit summary
Line 3: Line 3:
!Stain
!Stain
!Uses
!Uses
!Tissue Components Targeted
! colspan="2" |Tissue Components Targeted
!Mechanism of Staining
!Mechanism of Staining
!Stains Used
!Stains Used
Line 19: Line 19:
* Muscle - pink
* Muscle - pink
* Collagen - light pink
* Collagen - light pink
|
|
|
|
|
Line 30: Line 31:
|Periodic Acid-Schiff (PAS)
|Periodic Acid-Schiff (PAS)
|
|
* Identifying glycogen, starches, and fungi (chitin)
* Identifying neutral polysaccharides (Group I carbohydrates)
** glycogen
** starches
** cellulose
** fungi (chitin)
|
|
|
|
|
|-
| rowspan="4" |Alcian Blue (AB)
| rowspan="4" |
* Identifying acid mucopolysaccharides (Group II carbohydrates)
* Identifying glycoproteins (Group III carbohydrates)
|pH 1.0: Sulfated mucopolysaccharides
|pale blue
|Ionic bonding
|
|
|-
|Acid mucins (mucopolysaccharides)
|
|
|
|
Line 36: Line 58:
|
|
|-
|-
|Alcian Blue (AB)
|Sialomucins (glycoproteins)
|
|
|
|
|
|
|-
|Background
|pink/red
|
|
|
|
Line 44: Line 71:
|-
|-
|Alcian Blue + Periodic Acid-Schiff (AB PAS)
|Alcian Blue + Periodic Acid-Schiff (AB PAS)
|Identifying  multiple different types of carbohydrate groups
|
|
|
|
Line 53: Line 81:
|
|
* Identifying amyloid deposits
* Identifying amyloid deposits
|
|
|
|Hydrogen bonding
|Hydrogen bonding
Line 68: Line 97:
* Cytoplasm - red
* Cytoplasm - red
* Collagen - varies by stain (often green or blue)
* Collagen - varies by stain (often green or blue)
|
|Porosity and ionic bonding
|Porosity and ionic bonding
|No primary stain.
|No primary stain.
Line 84: Line 114:
* Reticulin fibres - black
* Reticulin fibres - black
* Nuclei and cytoplasm - varies by counterstain
* Nuclei and cytoplasm - varies by counterstain
|
|Metallic impregnation
|Metallic impregnation


Line 105: Line 136:
* RBCs - yellow
* RBCs - yellow
* Cytoplasm - yellow
* Cytoplasm - yellow
|
|Van der Waal's
|Van der Waal's


Line 123: Line 155:
* Identifying triglycerides, lipids, and lipoproteins
* Identifying triglycerides, lipids, and lipoproteins
|Connective Tissue Stain
|Connective Tissue Stain
|
|Selective solubility
|Selective solubility
|
|
|
|
|}
|}

Revision as of 08:52, 6 March 2024

Stain Uses Tissue Components Targeted Mechanism of Staining Stains Used
  1. Primary
  2. Secondary
Other Reagents
Hematoxylin & Eosin (H&E)
  • General tissue staining
  • Nuclei - blue
  • RBCs - red/dark pink
  • Muscle - pink
  • Collagen - light pink
  1. Harris Hematoxylin (nuclear)
  2. Eosin Y (cytoplasm)
Harris Hematoxylin

Acid Alcohol Scott's tap water substitute Eosin Y

Periodic Acid-Schiff (PAS)
  • Identifying neutral polysaccharides (Group I carbohydrates)
    • glycogen
    • starches
    • cellulose
    • fungi (chitin)
Alcian Blue (AB)
  • Identifying acid mucopolysaccharides (Group II carbohydrates)
  • Identifying glycoproteins (Group III carbohydrates)
pH 1.0: Sulfated mucopolysaccharides pale blue Ionic bonding
Acid mucins (mucopolysaccharides)
Sialomucins (glycoproteins)
Background pink/red
Alcian Blue + Periodic Acid-Schiff (AB PAS) Identifying multiple different types of carbohydrate groups
Congo Red
  • Identifying amyloid deposits
Hydrogen bonding
Masson Trichrome
  • Identifying fibrotic tissue
Connective Tissue Stain
  • Nuclei - blue-black
  • RBCs - dark red
  • Muscle - red
  • Cytoplasm - red
  • Collagen - varies by stain (often green or blue)
Porosity and ionic bonding No primary stain.
  1. Iron hematoxylin (nuclear)
  2. Ponceau (dense connective)
  3. Light green or aniline blue (loose connective)
Gordon and Sweet's Reticulin
  • Identifies reticulin fibres (type III & IV collagen)
  • Differential diagnosis of certain tumour types
Connective Tissue Stain
  • Reticulin fibres - black
  • Nuclei and cytoplasm - varies by counterstain
Metallic impregnation
  • Argyophilic metallic impregnation & substitution

Counterstain

  • Ionic bonding
  1. a
  2. Varies (light green, nuclear fast red, neutral red, etc.)
Verhoeff's Van Giesen
  • Identifies elastin fibres
Connective Tissue Stain
  • Elastic fibres - blue-black/black
  • Nuclei - dark blue-black
  • Collagen - red
  • Muscle - orange
  • RBCs - yellow
  • Cytoplasm - yellow
Van der Waal's
  • Primary stain

Porosity and ionic bonding

  • Counterstain
  1. Verhoeff's Iron Hematoxylin (elastic fibres)
  2. Van Giesen
    1. Picric acid (RBCs and cytoplasm)
    2. Acid fuchsin (collagen and muscle)
Oil Red O
  • Identifying triglycerides, lipids, and lipoproteins
Connective Tissue Stain Selective solubility