Fig. 1

Case 1. a Thoracic radiograph, latero-lateral view. Normal cardiac silhouette, pulmonary interstitial pattern, presence of small nodules. b Pulmonary sonography. Scattered small sub pleural solid nodules. c Pulmonary sonography. Largest small sub pleural solid nodule, diameter ~5 mm. d Cytological examination. Mixed inflammatory cells, mainly foamy macrophage, with features of erythrophagocytosis. No bacteria and or other pathogens are present. e Post-treatment pulmonary sonography. No sub-pleural nodules can be visualized. f Post-treatment thoracic radiograph, latero-lateral view. Normal cardiac silhouette, mild pulmonary broncho- interstitial pattern, no more evidence of nodular lesions