![]() H & E stain |
Muscle Fibers Sizes Hypertrophic Small: Angular or Rounded Grouped or Individual Pyknotic nuclear clumps (Large) Internal architecture Partially fused (Split) Internal nuclei Damage Necrosis: Scattered large fibers Regeneration: Clustered immature fibers |
![]() VvG stain |
![]() H & E stain |
![]() VvG stain |
![]() H & E stain |
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Muscle fibers: Small & Angular, or Pyknotic nuclear clumps |
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![]() H & E stain |
![]() Esterase stain |
![]() H&E stain |
![]() H&E stain |
![]() H&E stain |
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Grouped atrophy Smaller fibers may be rounded or angular Large muscle fibers are hypertrophied | ||
![]() VvG stain |
![]() Gomori trichrome stain |
![]() Esterase stain |
![]() NADH stain |
![]() NADH stain |
Some small fibers are darkly stained Large muscle fibers Coarse internal architecture; Pale centers "Splitting" (Partial fusion)(Below) | |
![]() NADH stain |
![]() NADH stain |
![]() ATPase, pH 9.4 |
![]() ATPase, pH 9.4 |
![]() ATPase pH 4.3 stain |
Large muscle fibers: Type 1 predominance Small muscle fibers: Either type 1 or 2 Grouped atrophy: Small regions; Mixed fiber types |
![]() ATPase pH 9.4 stain |
![]() From Mei Li MD Androgen Receptor in Motor Neuron
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![]() From Mei Li MD Polyglutamine in Motor Neuron
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