Significance of Oil-Red-O positive macrophages in bronchoalveolar lavage in diagnosing E-cigarettes or vaping product use-associated lung injury: A case series.

In BAL specimens obtained from patients with clinically suspected EVALI, a high percentage of OPM with large lipid droplets showed high sensitivity and specificity for the diagnosis of EVALI and may serve as a potentially useful tool in the evaluation of vaping-related lung injury, improving diagnostic accuracy.