You are reviewing the blood film tray and a further two patients are noted to have lymphocytosis

Case C

• Hb 96 g/L
• WCC 34 (10^9/L)

Case D

• Hb 100 g/L
• WBC 23 (10^9/L)

Can you describe the findings?

Do they differ from each other? And from case B?

What would be your provisional diagnosis?