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Fig. 4 | Acta Veterinaria Scandinavica

Fig. 4

From: Concurrent pulmonary hypoplasia and congenital lobar emphysema in a young dog with tension pneumothorax: a rare congenital pulmonary anomaly

Fig. 4

Photomicrograph of the excised left cranial lung lobe. a, b Small tissue mass attached to the excised lung: a disorganized cartilage plates with narrow underdeveloped airway lumens are observed. The arrow shows a tertiary bronchi with a dysplastic cartilage plates. Bar: 100 µm; b hypertrophic vessel (white arrow) and an area of bronchial cartilage dysplasia (black arrow). Bar: 100 µm. c, d The excised lung lobe: c Emphysematous alveoli and terminal bronchioles. Bar = 500 µm; d Bulla (Bu) and bleb (Bl) of approximately 4 and 7 mm in diameter were identified within the parenchyma and below the visceral pleura, respectively. Bar: 2 mm. ad Hematoxylin and eosin stain

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