ITGAM and acute respiratory distress syndrome: DEspR+CD11b+ neutrophils were detected in ARDS lung parenchyma, microvasculature and intra-alveolar exudates on post-mortem lung tissue section immunohistochemistry-staining; and peripheral levels correlated with ARDS severity measures, same-day sequential organ failure (SOFA)-scores and day-28 intensive care unit-free days, in contrast to non-correlation of DEspR-negative (DEspR[-]) neutrophil levels (23).