case_images: PMC11129858_01
case_images: Photomicrographs of the lung. A, B, C, and D have different views of arteriovenous malformation involving the lungs; irregularly dilated blood vessels with different thin and thick walls (veins, arteries) labeled with yellow arrows, and the wall of blood vessels shows myxoid degeneration pointed with green arrows (All H and E, X40).
case_images: autopsy-14-e2024489-g01.jpg
case_images: PMC11129858_01_autopsy-14-e2024489-g01.jpg
case_images: gf01
case_images: Adjacent lung tissue shows secondary interstitial pneumonia consisting of infiltration of alveolar septa with mixed inflammatory cells (neutrophils and lymphocytes), acute bronchiolitis formed of infiltration of the wall of bronchioles with acute inflammatory cells, and secondary emphysema was seen as dilated lung alveoli with ruptured alveolar septa in between (Figures 1 and 2).
case_images: Photomicrographs of Arteriovenous malformations complications in the lung. A
  - New capillaries with interstitial hemorrhage pointed with yellow arrow (H& E, X400); B
  - interstitial pneumonia; mixed inflammatory cells pointed with blue arrow (H&E, X100); C
  - Acute bronchiolitis labeled with red arrow (H& E, X400); D
  - Secondary emphysema; dilated lung alveoli with rupture of alveolar septa pointed with purple arrow (H&E, X100).
case_images: autopsy-14-e2024489-g02.jpg
case_images: PMC11129858_01_autopsy-14-e2024489-g02.jpg
case_images: gf02
case_images: Adjacent lung tissue shows secondary interstitial pneumonia consisting of infiltration of alveolar septa with mixed inflammatory cells (neutrophils and lymphocytes), acute bronchiolitis formed of infiltration of the wall of bronchioles with acute inflammatory cells, and secondary emphysema was seen as dilated lung alveoli with ruptured alveolar septa in between (Figures 1 and 2).
case_images: Photomicrographs of: A
  - Spleen - Congestion; the red pulp is widened with atrophy of white pulp labeled with yellow arrow (H& E, X40); B - Spleen - High power of congested red pulp pointed with yellow arrow (H& E, X400); C - Stomach -Arteriovenous malformation involving muscle wall; irregularly dilated blood vessels with different wall thickness splitting the muscle wall and showing hemorrhage pointed with green arrow (H& E, X100); D - Stomach - High power of arteriovenous malformation involving the wall pointed with green arrow (H&E, X400).
case_images: autopsy-14-e2024489-g03.jpg
case_images: PMC11129858_01_autopsy-14-e2024489-g03.jpg
case_images: gf03
case_images: The spleen exhibited congestion with hemorrhage, with widened and congested red pulp and atrophy of white pulp (Figures 3A and 3B). The stomach sections also showed arteriovenous malformation seen as irregularly dilated blood vessels with different wall thicknesses, splitting the muscle wall, and hemorrhage (Figures 3C and 3D).