Nonspecific interstitial pneumonia is one of the most common forms of drug-associated pneumonitis. Nonspecific interstitial pneumonia is characterised histologically by homogeneous alveolar wall thickening by fibrous tissue and mononuclear inflammatory cells. The reaction is seen in association with a variety of drugs, the most common being methotrexate, amiodarone and carmustine (Erasmus et al, 2002) . The corresponding radiographical and HRCT findings usually consist of patchy or diffuse ground-glass opacities (Rossi et al, 2000; Erasmus et al, 2002) ( Figure 1D ). On disease progression, there may be evidence of fibrosis with development of a reticular pattern and traction bronchiectasis. In some patients, the fibrosis is patchy in distribution and predominantly peribronchovascular, a pattern most commonly seen in patients receiving nitrofurantoin. Late chemotherapy lung may predominate in the upper and lateral parts of the lung.