• Hypercellular marrow (90% cellularity)
• 80% medium sized lymphs with scant basophilic vacuolated cytoplasm
• Nucleoli noted (see pictures below)
• Stains:
• Periodic acid-Schiff stain (PAS) - Negative (explain PAS pattern)
• Sudan black B (SBB) -  Negative (explain SSB significance)
• Nonspecific esterase (NSE) - Negative (explain NSE significance)

Peripheral Blood	Peripheral Blood	Bone Marrow

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