Pneumopathy osteoplastic

Pneumopathy osteoplastic (gr. pneumon - light; pathos - suffering, illness; osteon - bone; plastike - formation, education; synonym: osteoma branchy, osteoma of the lungs) - the development of bone tissue in the lungs in the form of nodules or branching fibers (Fig.). To tumor process of upper-pneumopathy has nothing, so to call it osteomas wrong.
Pneumopathy osteoplastic is rare, mostly men in old age, but may be at a young age and in children. At showdown in light probes solid education, with the focal or diffuse distribution. Are they more often in lower lobes, but can capture all share. The lesion can be one - or two-way. In the context of the lung are also feeling solids. On the surface of the section are defined small bone formation in the form of multiple nodules or stalaktitovaya figures. When microscopy visible compact bone structure or balocchi, located in the tissue millionarmy walls, in the interstitium of the lungs and sometimes in the lumen of the pulmonary alveoli. Bulochki lie in isolation or form a network, reminding spongy bone with the development of fat or blood in the bone marrow. The bone tissue is usually Mature, plate, sometimes with the formation gaverova systems. In the diffuse spreading process, removing the tissue of the lungs, you can get branched corruptable education (branched upper pneumopathy - pneumopathia osteoplastica racemosa).
Bone occurs on the basis of the proliferation of local undifferentiated connective tissue cells without prior development of cartilage. In the process of proliferation they acquire osteopaticheskii potency, obviously, due to local changes in the chemistry of the environment.
The pathogenesis of pneumopathy osteoplastic associated with transferred interstitial pneumonia, pneumosclerosis. P. O. clinical symptoms usually does not happen by chance finding at autopsy. In life it can be detected by x-ray of the chest.

Branchy ossification of the lungs.