[Malignant transformation of lung hamartomas]

The analysis of the pertinent literature data and personal author's materials on malignant transformation of lung hamartomas is reported. One case is described in detail as an illustration of clinico-anatomical characteristics of such kind of lesions. The interest of the report lies in the casuistry of malignant transformation of lung hamartoma, great extension of the pathological process and metastasization in a regional lymph node of its epithelial portion. Also unusual is the fact of metachronous appearance of rare primary multiple tumors.