title: [Complex pulmonary tumor: pneumoblastoma. A case study (author's transl)].
abstract: The authors report a new case of pneumoblastoma concerning a 63 years old man who dies with hepatitic insufficiency and massive metastasis. The study in optic and electronic microscopy shows the three cellular contingents which form the pneumoblastoma: clusters of indifferenciated cells, spindle cells and cubic or cylinder epithelial cells, with few secretory granules and microvilli which form tubes or lobules. All the features show clearly a blastematous character very similar to a foetal lung which allows to differenciate the pneumoblastoma from carcinosarcoma.
mesh_terms: D002296:Carcinosarcoma / Q000175:diagnosis / Q000473:pathology* / Q000648:ultrastructure; D003937:Diagnosis, Differential; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000648:ultrastructure; D008297:Male; D008875:Middle Aged
vernacular_title: Tumeur pulmonaire composite: le pneumoblastome. A propos d'un cas.