A Case of Malignant Mixed Salivary Tumor Composed of Squamous Cell Carcinoma and Osteosarcoma in a Cat

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  • OYAMADA Toshifumi
    Department of Veterinary Pathology, Faculty of Veterinary Medicine, Kitasato University
  • OKUJIMA Hisataka
    Department of Veterinary Pathology, Faculty of Veterinary Medicine, Kitasato University
  • ANDO Ryou
    Department of Veterinary Pathology, Faculty of Veterinary Medicine, Kitasato University
  • PARK Chun-Ho
    Department of Veterinary Pathology, Faculty of Veterinary Medicine, Kitasato University
  • YOSHIKAWA Hiroyasu
    Department of Veterinary Pathology, Faculty of Veterinary Medicine, Kitasato University

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Other Title
  • 猫の扁平上皮癌と骨肉腫よりなる唾液腺悪性混合腫瘍の1例
  • ネコ ノ ヘンペイ ジョウヒガン ト コツニクシュ ヨリ ナル ダエキセン アクセイ コンゴウ シュヨウ ノ 1レイ

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A ten-year-old male Japanese cat that presented with vomiting and anorexia was found to have a swollen right submandibular gland after palpation and X-ray examination. The extirpated gland was diagnosed as a malignant mixed tumor of the salivary gland with rare morphology. There was no normal structure in any part of the tumor tissue and it was composed of nests of squamous cell carcinoma, myoepithelial proliferation with osteoid differentiation and osteosarcoma. There was no mucinous/chondromatous prolifeation. The present mixed tumor in the submandibular gland has not previously been reported in cats.

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