Patients with alveolitis had non-significantly higher VEGF concentrations compared to those without (median: 53.9 pg/mL, IQR 5.5–184.3 pg/mL vs. 31.8 pg/mL, IQR 5.5–321.8 pg/mL, p>0.05). The gene discussed is VEGFA; the disease is hypersensitivity pneumonitis.