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. 2020 Jun 8;44(8):1800–1802. doi: 10.1038/s41366-020-0624-5

Fig. 2. Light microscopy of lung biopsy from an adult overweight patient died by COVID-19.

Fig. 2

Resin-embedded and toluidine blue-stained section (procedure inducing a characteristic yellow staining of lipids). Note the numerous large lipid droplets (L) into the capillary lumen of alveolar septa. Alveolar macrophages are filled with cytoplasmic lipid droplets. Alv: aveolar space, m: macrophages. Bar: 15 microns (in collaboration with Prof. Adriano Tagliabracci and Dr Mauro Pesaresi, Department of Biomedical Sciences and Public Health, Legal medicine, Marche Polytechnic University—United Hospitals of Ancona, Italy).