Images in clinical medicine. Bronchial cast

Bronchial cast hiding a lung cancer

A 70-year-old man was admitted for severe hypoxia, haemoptysis and cough. Chest-X-ray and CT-scan indicated a right-lower-lobe collapse. Bronchoscopy showed its occlusion by whitish dense mucus. Aspiration revealed a Bronchial Cast (BC) and a stenotic and inflamed orifice of the right-lower-lobe-bronchus which was biopsied.Histopathologic examination of BC showed fibrin with lymphocytes and neutrophils, and, surprisingly, also the presence of lung cancer. Although the association between BC and benign, myxoid-soft-tissue, tracheobronchial tumors has been described, the association with lung cancer has not previously been reported, and it remains unclear whether it is causal or casual.

Effective use of corticosteroids in treatment of plastic bronchitis with hemoptysis in Chinese adults

AIM

To investigate whether corticosteroids are effective in the treatment of plastic bronchitis with hemoptysis.

METHODS

A retrospective, clinical study was undertaken. Thirty two patients with only first episodes of plastic bronchitis with hemoptysis were divided into a steroid group (n=18) treated with glucocorticoids, and a non-steroid group (n=14). The supportive therapy was uniformly applied to both groups, except for glucocorticoids. Variables such as temperature and white blood cell counts were determined. Furthermore, the volume of hemoptysis and bronchial casts were evaluated in detail daily.

RESULTS

There was no difference in the demographic data and variables at baseline between both groups (all P>0.05). On days 5, 6, 7 and 8, the volume of hemoptysis was significantly decreased in the steroid group compared with the non-steroid group (43+/-15 mL vs 117+/-33 mL on d 5, 29+/-12 mL vs 97+/-23 mL on d 6, 18+/-10 mL vs 80+/-20 mL on d 7, and 13+/-8 mL vs 66+/-14 mL on d 8; all P<0.05), and on d 10 after fibreoptic bronchoscopy, the cases with bronchial casts was reduced evidently in the steroid group in comparison with the non-steroid group (OR=5.69, 95% CI=1.76-43.6; P=0.005). There was no significance in mechanical ventilation and mortality between both groups.

CONCLUSION

Despite some limitations of this study, it has been demonstrated that, on the basis of common supportive therapy, corticosteroids would be effective and safe for the treatment of plastic bronchitis with hemoptysis.

[Intermittent asphyxia syndrome caused by a bronchial cast in the subglottic region]

We report the case of an intensive care unit patient with acute respiratory failure caused by severe community-acquired pneumonia with empyema. She required orotracheal intubation and mechanical ventilation. Following extubation the patient s condition improved until the onset of several choking episodes caused by a dislodged laryngotracheal cast in the subglottic region. We discuss the differential diagnosis of upper airway obstructions and of the entities related to bronchial cast formation, in particular the clinical and pathophysiological features of plastic bronchitis and the treatment options available.

[Lipoid pneumonia related to workplace exposure to paint]

A 49-year-old man with no known history of pulmonary disease was treated at our hospital after observation of an interstitial pattern on a chest film. The patient was a smoker and professional painter. Computed tomography of the chest showed a diffuse bilateral ground-glass pattern. The lung biopsy showed intra-alveolar lipid accumulation in the form of vacuoles of varying sizes surrounded by numerous focally multinucleated macrophages, establishing a definitive diagnosis of exogenous lipoid pneumonia. Given the patient's profession, he was recommended to avoid workplace exposure to paraffins and oily sprays. The clinical course was favorable after exposure was stopped, with improved lung function and symptoms.