Squamocellular carcinoma and XXXX : a true pulmonary carcinosarcoma. Report of a case.

@entity1 @entity511 @entity242 @entity5 @entity957 @entity3909 @entity421 @entity151 @entity6962
BACKGROUND: @entity6962 is one of the less common @entity5 of the lung and is composed of a mixture of malignant epithelial and mesenchymal elements of the type ordinarily seen in @entity5 of adults. The @entity3909 component is mostly epidermoid and sometimes adenomatoid or undifferentiated. The mesenchymal part is mostly a spindle cell @entity242 and sometimes a polymorphocellular @entity242 . Differentiation as @entity421 and @entity511 is rare. CASE REPORT: This report describes the case of a @entity1 with @entity6962 of the lung composed of @entity957 and @entity511 . A left hilar mass was incidentally diagnosed. The @entity1 was submitted to surgical exploration and a left lower lobectomy with dissection of local lymph nodes was performed. At microscopy the @entity5 was composed of both epithelial and stromal malignant component. The epithelial component consisted of poorly-differentiated @entity957 and the stromal component consisted of @entity511 . He remains well 30 months later. CONCLUSION: The prognosis of @entity1 with @entity6962 is not always unfavourable. Potentially curative surgical resections should always be attempted. Pathologists should be aware of a wrong diagnosis of undifferentiated @entity151 which eliminates the @entity1 from surgery.
