Chauhan, M S Necrobiotic pulmonary nodule leading to pyopneumothorax in a case of rheumatoid arthritis--a rare clinical presentation. [electronic resource] - The Indian journal of chest diseases & allied sciences - 217-20 p. digital Publication Type: Case Reports; Journal Article ISSN: 0377-9343 Subjects--Topical Terms: Arthritis, Rheumatoid--complicationsEmpyema--etiologyHumansLung Diseases--complicationsMaleMiddle AgedPneumothorax--etiologyRheumatoid Nodule--complications