BACKGROUND:The incidence of lung abscess acquired in the community is unknown, but this is a common clinical problem encountered in developing countries. The incidence of lung abscess was high in the pre-antibiotic era but the advent of susceptible antibiotics it has reduced with an equal fall in mortality to 8.7%. With the emerging antibiotic resistance and change in the trends of bacteriological profile causing lung abscess, it is the need of time to reevaluate lung abscess.AIM:The study aimed to determine the clinical, radiological and bacteriological profile of lung abscess.MATERIAL AND METHOD:The study was a non-randomized prospective observational study conducted in the department of pulmonary medicine for 18 months. In the study, patients > 15 years of age with clinical features of lung abscess were recruited and were subjected to chest X-ray, routine blood test. Sputum gram stain and culture, as well as antibiotic sensitivity according to the organism, were evaluated. Reports of all investigations along with patient characteristics and risk factors were analysed statistically using SPSS 20.0.RESULTS:Forty-six cases of lung abscess were included, and the majority of patients were found to be adults with a mean age of 42.9 years with a male to female ratio of 6.6:1. The most common predisposing factor was an unhygienic oral cavity in 28% of cases with alcohol ingestion being the most important risk factor in 22% of cases. The most common organism found in lung abscess cases was Klebsiella pneumoniae, and they were sensitive to ceftazidime.CONCLUSION:Our study shows that Klebsiella pneumoniae should be considered an important pathogen in community-acquired lung abscesses.

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Not all miliary opacities on a chest radiograph are due to tuberculosis (TB). Brucellosis is an important zoonotic disease and remains a worldwide public health problem. This is a multi-system infection that may present with a wide range of clinical presentation, organ system involvement and complications. Presentation with a miliary pattern is a rare manifestation of brucellosis. We report the case of a 76-year-old male who presented with prolonged fever, miliary pattern on the chest radiograph in whom the diagnosis of brucellosis was confirmed as the aetiological cause.

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