Angiogenesis is a central event in AMD and MPNs, in the retina and bone marrow, respectively, with VEGF as the most important pro‐angiogenic agent (Fleckenstein et al., 2021; Hasselbalch, 2012; Medinger et al., 2009; Medinger & Passweg, 2014). The gene discussed is VEGFA; the disease is age-related macular degeneration.