<prompt> Opacity with nodular Irregular calcification is seen in:Pulmonary HistiocytosisSarcoidosisSclerodermaAll of the above  <response>: Ans. D. All of the aboveAll these conditions are associated with eggshell calcificationHoney combing is seen in:a. Histiocytosis Xb. Tuberous sclerosisc. Sarcoidosisd. Pneumoconiosise. Cryptogenic Fibrosing alveolitisf. Sclerodermag. Rheumatoid arthritish. Lipoid pneumoniai. Lymph angiomatosisj. AmyloidosisCrazy pavement appearance is seen in alveolar proteinosis 