Case Report
Pompe Disease Could Mimic Exam Findings of Amyloidosis: Two Rare Diagnoses Bona Fide
Figure 2
Acid phosphatase stain showing increased reactivity (appearing red) in many vacuolated and nonvacuolated fibers. Acid maltase is present in lysosomes, and the increased acid phosphatase reactivity is representative of lysosomal dysfunction.