Journal of the Japan Veterinary Medical Association
Online ISSN : 2186-0211
Print ISSN : 0446-6454
ISSN-L : 0446-6454
Squamous Cell Carcinoma in the Lung of a Cow
TADAO KONDOMASAYUKI ADACHI
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JOURNAL FREE ACCESS

1991 Volume 44 Issue 12 Pages 1207-1209

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Abstract

Squamous cell carcinoma in the right craminal lung lobe of a 16-year-old Holstein-Friesian cow was observed. The original neoplastic mass, grayish-white in color and 20×10×3cm in size, occupied the posterior half of the cranial lobe of the right lung. Numerous metastatic nodules sized up to 1cm in diameter were scattered over the right pulmonary pleura, pericardium and thoracic wall and sometimes infiltrated into the surrounding tissue. A cord-like arrangement and nest formation were seen in the dense fibrous stroma. The neoplastic cells closely resembled squamous epithelial cells. They had oval or round, large hypochromatic nuclei with several nucleoli and eosinophilic keratohyaline granules in the cytoplasm.

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