PMC4075922_01
Manually-compressed resin spraying system with a discharge valve. Note the
presence of droplets on the lens of the camera as a result of the product
spray.
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In that same room, a coworker performed the waterproofing of the fabrics by using a manually-compressed spraying system (Figure 1).
In A, an HRCT scan showing left pneumothorax and extensive bilateral areas
of ground-glass attenuation. In B, findings of desquamative interstitial
pneumonitis on histology of an open lung biopsy sample, revealing that the
architecture of the lung parenchyma and small airways is intact, with mild
interstitial thickening. There are areas of alveolar filling with pooled
alveolar macrophages, without granuloma formation (H&E; scale bar, 200 im).
In C, detail of Figure 2B showing alveolar septa with reactive pneumocytes and
intra-alveolar macrophage accumulation (H&E; scale bar, 20 microm).
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Three months later, he had sudden pain in the left hemithorax with worsening dyspnea, a pneumothorax was diagnosed, and there was a finding of diffuse ground-glass infiltration (Figure 2A). Twelve days later, drainage resulted in unsatisfactory lung expansion, and the patient underwent thoracotomy and lung biopsy, which revealed desquamative interstitial pneumonia (Figures 2B and 2C).