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Washington University Experience | METABOLIC | Pompe Disease | 5B1 Muscle (Case 5) PAS 20X
5B1,2 PAS (5B1) and PAS with diastase digestion (5B2) stains were performed to evaluate glycogen stores. The muscle shows strong cytoplasmic PAS labeling which was significantly diminished by diastase, consistent with glycogen deposition. However, as is typical for tissue processed for paraffin embedding, much of the glycogen appears to have been washed out. (PAS/PAS-D)
