Medicine (Baltimore) 2017 Feb;96(5):e5875
Department of Internal Medicine, Istanbul Medipol University Department of Infectious Diseases and Clinical Microbiology, Istanbul Medeniyet University Sureyyapasa Chest Disease and Thoracic Surgery Training and Research Hospital Department of Infectious Diseases and Clinical Microbiology, Istanbul Medipol University Yedikule Chest Disease and Thoracic Surgery Training and Research Hospital, Department of Chest Disease Department of Infectious Diseases and Clinical Microbiology, Haseki Training and Research Hospital Department of Infectious Diseases and Clinical Microbiology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul Department of Infectious Diseases and Clinical Microbiology, Cukurova University Medical Faculty, Adana Department of Infectious Diseases and Clinical Microbiology, Katip Celebi University Department of Infectious Diseases and Clinical Microbiology, Ege University, Izmir, Turkey Department of Infectious Diseases and Clinical Microbiology, LutfiKirdar Training and Research Hospital, Istanbul, Turkey Department of Infectious Diseases and Clinical Microbiology, Atatürk University Faculty of Medicine, Erzurum, Turkey Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Dicle University, Diyarbakir, Turkey Department of Clinical Microbiology and Infectious Diseases, Gazi University Hospital, Ankara, Turkey Department of Infectious Diseases and Clinical Microbiology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey Faculty of Medicine, Department of Public Health, Medipol University, Istanbul, Turkey Department of Infectious Diseases and Clinical Microbiology, Istanbul Medipol University, Istanbul, Turkey.
The aim of this study was to determine the clinical features, and outcome of the patients with miliary tuberculosis (TB).We retrospectively evaluated 263 patients (142 male, 121 female, mean age: 44 years, range: 16-89 years) with miliary TB. Criteria for the diagnosis of miliary TB were at least one of the followings in the presence of clinical presentation suggestive of miliary TB such as prolonged fever, night sweats, anorexia, weight loss: radiologic criterion and pathological criterion and/or microbiological criterion; pathological criterion and/or microbiological criterion.The miliary pattern was seen in 88% of the patients. Predisposing factors were found in 41% of the patients. Most frequent clinical features and laboratory findings were fever (100%), fatigue (91%), anorexia (85%), weight loss (66%), hepatomegaly (20%), splenomegaly (19%), choroid tubercules (8%), anemia (86%), pancytopenia (12%), and accelerated erythrocyte sedimentation rate (89%). Tuberculin skin test was positive in 29% of cases. Fifty percent of the patients met the criteria for fever of unknown origin. Acid-fast bacilli were demonstrated in 41% of patients (81/195), and cultures for Mycobacterium tuberculosis were positive in 51% (148/292) of tested specimens (predominantly sputum, CSF, and bronchial lavage). Blood cultures were positive in 20% (19/97). Granulomas in tissue samples of liver, lung, and bone marrow were present in 100% (21/21), 95% (18/19), and 82% (23/28), respectively. A total of 223 patients (85%) were given a quadruple anti-TB treatment. Forty-four (17%) patients died within 1 year after diagnosis established. Age, serum albumin, presence of military pattern, presence of mental changes, and hemoglobin concentration were found as independent predictors of mortality. Fever resolved within first 21 days in the majority (90%) of the cases.Miliary infiltrates on chest X-ray should raise the possibility of miliary TB especially in countries where TB is endemic. Although biopsy of the lungs and liver may have higher yield rate of organ involvement histopathologicaly, less invasive procedures including a bone marrow biopsy and blood cultures should be preferred owing to low complication rates.