case_images: PMC4075914_01
case_images: Initial radiological findings. In A, chest X-ray showing a reticular
  interstitial pattern predominantly in the lower lung fields, already denoting
  some loss of volume. In B-E, CT scan showing septal thickening patterns,
  traction bronchiectasis, small areas of ground-glass opacity, and consolidation
  with a peribronchovascular distribution.
case_images: 1806-3713-jbpneu-40-01-00092-gf01.jpg
case_images: PMC4075914_01_1806-3713-jbpneu-40-01-00092-gf01.jpg
case_images: f01
case_images: A CT scan of the chest showed calcified mediastinal adenopathy exhibiting an "eggshell" pattern, interlobular reticulation, traction bronchiectasis, and septal thickening, as well as areas of ground-glass opacity, alveolar consolidation with a peribronchovascular distribution, and areas of pleural thickening (Figure 1).
case_images: Photomicrographs of histological sections of surgical lung biopsy
  specimens. In A, chronic inflammatory infiltrate and septal fibrosing reaction
  (H&E; magnification, x40). In B, active fibroblastic foci (HHF35;
  magnification, x100). In C, macrophages with anthracotic pigmentation and
  birefringent silica particles, as well as multinucleated giant cells along the
  bronchoalveolar axes and interlobular septa (HPX; magnification, x400). In D,
  lymphocytic inflammatory infiltrate with T cells (CD3; magnification, x100). In
  E, foci of B cells (CD20+) in the chronic inflammatory infiltrate (CD20;
  magnification, x40). In F, predominance of T cells with a CD8 immunophenotype
  (CD8; magnification, x200).
case_images: 1806-3713-jbpneu-40-01-00092-gf02.jpg
case_images: PMC4075914_01_1806-3713-jbpneu-40-01-00092-gf02.jpg
case_images: f02