[ Pulmonary inflammatory pseudotumor in a child]

The Inflammatory Pseudotumor is a no neoplastic process characterised by an irregular growth of inflammatory cells. A case of 10 years old male is described, he was asymptomatic, diagnosed by a casual chest XR, with a spheric mass in the inferior lobe of the right lung. An excisional biopsy was done with the result of "Inflammatory Pseudotumor". The Inflammatory Pseudotumor is a rare process that can be found in different regions of the human body, with most frequent localization, in the lung. The image tests are not specific for the diagnosis that only can be done by biopsy. The recommended treatment is the complete resection.