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(a) Under higher magnification, the microsporidal spores are seen as pink oval structures (H & E stain, × 1000); (b) magenta pink oval structures in PAS stain (× 500), (c) deep blue oval structures with dark tip (arrow) in some spores Giemsa stain (× 500), (d) well defined brown oval spores with dark tip or band in Gomoris methenamine silver stain (× 500)
