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Fig. 2 | BMC Pulmonary Medicine

Fig. 2

From: Delayed positive COVID19 nasopharyngeal test, a case study with clinical and pathological correlation

Fig. 2

Pathology findings from bronchoalveolar lavage and lung wedge biopsy. Bronchoalveolar lavage showing (a) neutrophilic predominant inflammation mixed with some eosinophils (red arrow, compatible with previous history of asthma), and (b) reactive pneumocytes with suspicious viral cytopathic effect; (ch) lung wedge biopsy revealing asthma change with thickened bronchiolar wall (c, left) and mucus plug (c, upper right), and COPD which is characterized by emphysema with dilated alveoli distal to bronchiole without fibrosis (c, right) and squamous metaplasia reparative to chronic damage (c, left lower), as well as newly onset active pneumonia with alveolar and interstitial fibrosis (c, mid), type II pneumocytes with possible viral cytopathic effect (d), acute pneumonia with alveolar damage (e), alveolar edematous exudate, intraalveolar fibrosis (f), rare syncytial cells amid squamous metaplasia (g), and endothelial injury (h). Pictures are taken using Olympus Microscope Model BX45TF, Olympus camera Model DP71 and Olympus CellSens software at a resolution of 72dpi, and processed in adobe photoshop CS5.1 at a resolution of 300 dpi

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