CASE 5

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(126K)
H&E stain on paraffin section Any myopathic features? Abnormal accumulations?
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(129K)
H&E stain on frozen section
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(162K)
Periodic Acid Schiff (PAS) stain for glycogen (also stains glycolipids and glycoproteins) Notice any abnormal accumulation?
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(111K)
Periodic Acid Schiff (PAS) stain for glycogen AFTER pretreatment with amylase to digest glycogen What does this stain tell you about the nature of the accumulated substance?
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(91K)
Phosphorylase (Myophosphorylase) histochemistry on PATIENT The lack of reaction is real
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(138K)
Phosphorylase (Myophosphorylase) histochemistry on a NORMAL CONTROL Activity is indicated by brown/purple deposit

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