Multidisciplinary approach to suspected sudden unexpected infant death caused by milk-aspiration: A case report

Figure 1 Gross examination of the respiratory tract: main bronchus (A, B) exposing edematous mucosal linings coated with whitish stringy material (orange arrows).

Figure 2 Results of histological examination. A: Lung tissue, marked congestion of alveolar septal capillaries, which were also engorged with white blood cells, and endo-alveolar incongruous material (black arrows) (haematoxylin-eosin, × 60); B: A positive CD15 mantle of cells (orange arrows) was immersed in endobronchial incongruous material; C: Strong CD68 positivity was visible throughout lung parenchyma (orange arrows); D: Marked alpha-lactalbumin positivity of the intra-alveolar substance was also evident; E: Cytoplasmic staining of macrophages was especially prominent.

Figure 3 Results of imaging examination. A: Total-body Postmortem Computed Tomography: hypodense material of indeterminate nature occupied the main airways bilaterally, especially the right lung from oropharynx to subsegmental bronchi; B, C and D: The lungs had collapsed and only a part of the right lung (orange arrow) was expanded and ventilated (orange arrows).