Salahuddin M, et al. - In this cross-sectional study, researchers identified clinical features and etiologies of miliary nodules within their institution. Demographic and clinical data for 53 patients who fulfilled the criteria of miliary nodules over the last 10 years were taken from the medical records. According to this, the largest single-center data review etiology of miliary nodules within the US, tuberculosis was diagnosed in 15 patients, sarcoidosis in 12, silicosis in 7, extrathoracic malignancy in 5 and histoplasmosis in 4 patients. Histoplasmosis was found in four out of nine patients with HIV. In 4 cases, the sputum was positive for acid fast bacilli, and bronchoscopy had a 57% successful yield in miliary tuberculosis.