PMC10232773_01
Case 1, thoracic radiographs: (a) Note the small distribution of areas with diffuse interstitial pulmonary pattern and pronounced peribronchial infiltration around the large bronchi; (b) Ventro-dorsal projection of the thorax radiography showing marked cardiomegaly with right ventricular enlargement; (c) Spectral Doppler study using continues wave revealed tricuspid regurgitant (TR) flow with a peak velocity >4.8 m/s suggesting severe PH (PG > 90 mmHg) and; (d) Right parasternal short axis view, slightly oblique for pulmonary trunk and right pulmonary artery optimal visualization. The main pulmonary artery is distended and parallel echogenic lines separated by a hypoechoic region were observed in the right main pulmonary artery (encircled area), suggesting a tubular structure, most probably the worm profile.
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PMC10232773_04_fvets-10-1146713-g0001.jpg
F1
The left lung failed to collapse and showed severe edema and multifocal dark red areas of densification due to necrosis and hemorrhages, affecting mostly the caudal lobe (Supplementary Figures 1a, b).
PMC10232773_02
PMC10232773_03
PMC10232773_04
Case 1, thoracic radiographs: (a) Note the small distribution of areas with diffuse interstitial pulmonary pattern and pronounced peribronchial infiltration around the large bronchi; (b) Ventro-dorsal projection of the thorax radiography showing marked cardiomegaly with right ventricular enlargement; (c) Spectral Doppler study using continues wave revealed tricuspid regurgitant (TR) flow with a peak velocity >4.8 m/s suggesting severe PH (PG > 90 mmHg) and; (d) Right parasternal short axis view, slightly oblique for pulmonary trunk and right pulmonary artery optimal visualization. The main pulmonary artery is distended and parallel echogenic lines separated by a hypoechoic region were observed in the right main pulmonary artery (encircled area), suggesting a tubular structure, most probably the worm profile.
fvets-10-1146713-g0001.jpg
PMC10232773_04_fvets-10-1146713-g0001.jpg
F1
The left lung failed to collapse and showed severe edema and multifocal dark red areas of densification due to necrosis and hemorrhages, affecting mostly the caudal lobe (Supplementary Figures 1a, b).
Case 2, Gross examination of the lungs and pulmonary arteries: (a) Lungs shows numerous dark red areas of densification, suggesting verminous pneumonia with necrosis and hemorrhages (arrows); (b) Detail of the opened pulmonary artery showing numerous adults of A. vasorum in the pulmonary artery (arrow).
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PMC10232773_04_fvets-10-1146713-g0002.jpg
F2
The main postmortem changes consisted of severe cyanosis and bilateral pulmonary densification with multiple areas of hemorrhage and necrosis (cobblestone appearance) (Figure 2a). A. vasorum, measuring between 2 and 2.5 cm in length (Figure 2b). A single adult female of Dirofilaria immitis was found in the right ventricle of the heart. The dog was in a good body condition and the main postmortem changes were represented by bilateral and multifocal to coalescing red areas of consolidation within the lungs (Supplementary Figure 2a). The pulmonary arteries contained numerous thread-like adult nematodes, measuring between 2 and 2.5 cm in length (Supplementary Figure 2b).