PMC8276821_01
Photomicrographs of the pulmonary nodule. A - Shows a granuloma (right arrow), a granuloma with fibrinoid necrosis (arrowhead) and a granulomatous angiitis (left arrow); B - Shows granulomatous angiitis in higher magnification (black arrowhead). Fungus and mycobacteria were not found (both pictures H&E, A 100X, and B 200X).
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PMC8276821_01_autopsy-11-e2021294-g01.jpg
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The Grocott, PAS, and ZN staining ruled out eventual infection by fungus or mycobacterium (Figure 1).
Photomicrograph of the pulmonary nodule showing a vessel injury and granuloma (Weigert-Van Gieson, 100X).
autopsy-11-e2021294-g02.jpg
PMC8276821_01_autopsy-11-e2021294-g02.jpg
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