Regarding tissue analyses, increased IL‐8 expression was found on bronchial epithelial cells in a study by Elssner et al. [21] Finally, looking at donor lung biopsies, there was no difference in IL‐8 expression in future BOS or RAS patients compared to patients who would remain stable [77]. Here, CXCL8 is linked to Buschke-Ollendorff syndrome.