Radiological presentation of patients of pulmonary tuberculosis with diabetes mellitus

In a number of published comparative studies, chest X-ray images from patients having PTB with diabetes mellitus (DM) have been described as 'atypical', mainly because they frequently involve the lower lung fields, often with cavities. Patients were considered to have a diagnosis of diabetes mellitus if they were receiving insulin or an oral hypoglycemic agent at the time of hospital admission or were found to have two or more fasting blood glucose levels greater than 140 mg%.