PMC7304004_01
Thoracic-CT image of tracheal lesion.
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To study this clinical aggravation, thoracic-CT was performed, which revealed a oval hypodense formation in the left anterolateral wall of the trachea, with 12 mm (Fig. 1).
Bronchoscopic image of the tracheal lesion.
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Flexible bronchoscopy showed a polypoid lesion between the middle and the lower third of the trachea with implantation in the anterior wall and partial obstruction (<50%) of the lumen (Fig. 2).
Adipose tissue on the lamina propria of the tracheal mucosa.
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Histology of the resected tissue showed changes compatible with the diagnosis of tracheal hamartoma - respiratory epithelium with underlying basal cell hyperplasia, proliferation of mature adipocytes involving mucinous glands with areas of mature and immature cartilage and areas of mononuclear inflammatory infiltrate (Fig. 3, Fig. 4).
Flow volume curve in functional respiratory test.
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Posteriorly, when reviewing the clinical data of the patient, we noticed that the flow volume-curve was flattened (Fig. 5), but in the technical report it was referred that the patient had insufficient collaboration and so these alterations were interpreted then as the result of lack of cooperation during the functional respiratory testing.