An immunocompetent 82-year-old female was admitted to our hospital due to fever\nwithout clear origin and hyponatremia. In the following days, an acute and bilateral pulmonary\ninfiltrate appeared with a progressive worsening in respiratory function. Chest x-ray and CT\n(Computed tomography) showed bilateral reticulonodular infiltrates. Bronchoscopic aspiration\nand bronchoalveolar lavage (BAL), and transbronchial lung biopsy (TBBX) studies did not reveal\nmicrobiological and histopathological diagnosis. Broad-spectrum antibiotics were non-effective,\nand the patient died due to respiratory failure. Necropsy study revealed a miliary tuberculosis\naffecting lungs, liver, bone marrow, spleen, kidney, arteries, pancreas, and adrenal glands.\nSome weeks after the patient´s death, mycobacterial cultures from sputum, BAL and TBBX samples\nwere positive for Mycobacterium tuberculosis.
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