PMC8288210_01
Massive thrombi in pulmonary arteries. Figures in A - B shows CT scans of huge parietal thrombi within pulmonary artery aneurysms (arrows). Figures in C - D are parenchymal axial reconstructions of the same slices.
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F1
A computed tomography (CT) angiography of the pulmonary arterial vessels and thoracic aorta, performed in order to reveal the cause of haemoptysis, didn't find any bronchial vessels alterations but confirmed the presence of an atrial thrombus and revealed huge bilateral pulmonary artery aneurysms filled with coarse thrombotic formations (Figs. 1-3).
Coronal (A) and sagittal (B) CT reconstruction of the macroscopic pulmonary artery aneurysms.
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F2
A computed tomography (CT) angiography of the pulmonary arterial vessels and thoracic aorta, performed in order to reveal the cause of haemoptysis, didn't find any bronchial vessels alterations but confirmed the presence of an atrial thrombus and revealed huge bilateral pulmonary artery aneurysms filled with coarse thrombotic formations (Figs. 1-3).
Cardiac thrombus. Axial (A) and coronal (B) CT scans show the presence of an atrial thrombus (arrows).
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F3
A computed tomography (CT) angiography of the pulmonary arterial vessels and thoracic aorta, performed in order to reveal the cause of haemoptysis, didn't find any bronchial vessels alterations but confirmed the presence of an atrial thrombus and revealed huge bilateral pulmonary artery aneurysms filled with coarse thrombotic formations (Figs. 1-3).
Histopathological findings of Behcet Syndrome's pulmonary manifestations. (A) Aneurismatic dilatation of a large size branch of pulmonary artery with a thrombotic formation and a dense parietal inflammatory infiltrate (100x Hematoxilin-Eosin). (B) Irregularity and fragmentation of the arterial elastic tissue (100x Smooth Muscle Actin stain, 1A4 clone  CELL MARQUE).
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F4
An autopsy was performed, and it confirmed the presence of histopathological alterations plausible for Behcet disease (Figs. 4, 5).
Histopathological findings of Behcet Syndrome's pulmonary manifestations. (A) A medium size branch of pulmonary artery with inflammatory infiltrate (arrow) nearby an area of acute infarct (arrow-head) (B) The vasculitis is constituted by a dense lymphocytic infiltrate (200x Hematoxilin-Eosin).
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F5
An autopsy was performed, and it confirmed the presence of histopathological alterations plausible for Behcet disease (Figs. 4, 5).