Pulmonary asymptomatic recurrent cavitary sarcoidosis: A case report.

Cavitary sarcoidosis is a rare form and represents non-caseating granulomatous diseases of the lungs exhibiting a narrow range of differential diagnoses. The peculiarity of this case lies in the difficulty of distinguishing atypical manifestations of pulmonary sarcoidosis, such as cystic lesions, from cavernous tuberculosis. Both possess similar clinical and radiological features.

A case report of extra-articular manifestation of rheumatoid arthritis: Rheumatoid nodules in lungs.

Rheumatoid arthritis is a systemic inflammatory disorder primarily affecting joints but not limited to the joints alone. Extra-articular manifestations involve skin, ocular, gastrointestinal, pulmonary, cardiac, renal, neurological, and hematological systems. Among them, skin manifestations (20%) are most common, presenting as nodules on the extensor surfaces of the upper and lower extremities.