Pulmonary inflammatory pseudotumour in children.

Inflammatory pulmonary pseudotumour is an uncommon, non-neoplastic, occasionally aggressive spindle cell proliferative process of uncertain nosology. It has distinctive histopathological features and benign clinico-biological behaviour with multifocal lesions or recurrences in a minority of cases. Recognition of this entity is of paramount importance because it has considerable therapeutic and prognostic implications. The radiological features of two patients with pulmonary pseudotumour that was confirmed on histopathological examination are described.