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Silzbach sarcoidosis chest radiographic staging system

Dr Yuranga Weerakkody and Dr Frank Gaillard et al.

This is a chest radiograph staging method for sarcoidosis.

stage 0 - normal chest radigraph : 10% at time of diagnosis
stage I - lymph node enlargement : 50 % at time of diagnosis
stage II - lymph node enlargement and pulmonary opacities : 30% at time of diagnosis
stage III - pulmonary opacities only : 10 % at time of diagnosis
stage IV - pulmonary fibrosis