Oil Red O Staining of Pulmonary Macrophages in Bronchoalveolar Lavage Specimens Is Not Specific for Vaping-Associated Lung Injury.
Judith Jebastin ThangaiahChristine N BoothJennifer A BrainardTarik M ElsheikhJordan P ReynoldsSarah L OndrejkaBright P ThilagarSanjay MukhopadhyayErika E DoxtaderPublished in: American journal of clinical pathology (2022)
ORO staining in BAL fluid macrophages is not specific for EVALI. Even when an LLMI of 85 or higher is used as a threshold for positivity, ORO positivity occurs in a significant subset of non-vaping-related cases.