Nontuberculous Mycobacterial Infections

NTM infections are on the rise worldwide, particularly in the Western world. They cause a wide range of pulmonary and systemic manifestations described by various clinical and radiological types. The two most common types are as follows: classical cavitary type, seen with preexisting lung disease, and the nonclassical bronchiectatic type, seen in elderly women without preexisting lung disease. Disseminated infections by the hematogenous route are common in immunocompromised patients including those with HIV.