In addition, at least one of the following radiological criteria had to be present for inclusion: cavitation, diffuse infiltrates, hilar or mediastinal adenopathy.
In a previous study, calcified lymph nodes were reported in 11 of 13 (85%) patients with acute silicosis, and were located predominantly in the hilar regions and showed diffuse nodal calcification [ 10].
During the following decades his disease progressed to stage IV pulmonary sarcoidosis with bi-pulmonic fibrosis and bi-hilar lymphadenopathy accompanied by diffuse abdominal lymphadenopathy.
Features such as solitary hilar and mediastinal shadows, and diffuse small nodular shadows or pleural effusion were considered as consistent for TB.
In the inertial effect, the lighter alveolar tissue is sheared from the heavier hilar structures, an effect similar to diffuse axonal injury in head injury.
He was hospitalized, and computed tomography of the neck, thorax, and abdomen showed diffuse lymphadenopathy in cervical, axillary, mediastinal, periaortic, pulmonary hilar, mesenteric, and inguinal chains; and thickening of the cecum and appendix.
18 F-fluoro-deoxy-glucose positron emission tomography (FDG-PET) showed the localized uptake of FDG to the center of the mass-like lesion and right hilar lymph node, in addition to diffuse uptake by the bone marrow and an enlarged liver and spleen.
Diffuse small calcified nodules, often associated with egg-shell calcification of hilar or mediastinal lymph nodes, can occur in silicosis and coal workers' pneumoconiosis.
