20 Feb 2026
byDr. Cheuk-Man Ho, Specialist in Rheumatology, Hong Kong
A
75-year-old male nonsmoker was diagnosed with adult-onset asthma at 54 years
old in 2004, with blood eosinophil counts (BEC) rising from 1,500 cells/ μL in
2004 to 1,800 cells/μL in 2006, while serum immunoglobulin E (IgE) remained
normal. He tested negative for antineutrophil cytoplasmic antibody (ANCA) and
stool ova/cysts.