[Interstitial pneumonia in the immunodepressed child (author's transl)].

The authors stress the value of radiological examinations in the diagnosis of interstitial pneumonia in children with immuno-depression secondary to chemotherapy and/or radiotherapy. X-rays play a capital role in the early diagnosis of these conditions and may be of vital interest in some cases, in particular pneumocystosis which is curable. The diagnosis is based upon the discovery of minor signs of radiological interstitial syndrome, which in one third of cases is limited to a decrease in lung volume. This syndrome will be associated sooner or later with signs of alveolar involvement. The authors subsequently describe the underlying background, frequency, immune state, the circumstances of diagnosis and features of the aetiological diagnosis.