Das anaplastische Lungenkarzinom des Hundes

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Abstract
Of 86 canine pulmonary tumors five had the histological criteria of undifferentiated small-cell carcinoma and two of undifferentiated large-cell carcinoma. The five small-cell anaplastic careinomas could be divided, as is the case in man, according to strict histological criteria into fusiform, lymphocyte-like, and polygonal subgroups. In the fusiform and round-cell subgroups there were focal sites of equivocal differentiation towards epidermoid careinoma or adenocarcinoma. These local changes must be considered in making a diagnosis, but it was not possible to positively determine the behavior of anaplastic, epidermoid or glandular carcinomas. The classification of pulmonary carcinomas of domestic animals has significance not only for experimental oncology but also for clarification of the cause of pulmonary neoplasia. Anaplastic pulmonary carcinomas have not been found in the cat.

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