Mixed thymic tumor in a rooster: gross and histological features
Iraqi Journal of Veterinary Sciences,
Volume 33, Issue 2, Pages 201-204
AbstractA 2-year-old rooster local breed suffered from anorexia, emaciation with abnormal large mass in lateral side in cervical region was attended to Veterinary Teaching Hospital belong to College of Veterinary Medicine, Mosul University. After physical examination a movable and friable mass were recognized in cervical region. The case sends for surgical intervention. Gross examination of removed mass showed a friable, pale, will capsulated with hemorrhagic areas. Microscopically, the mass included three types of tumors. Squamous cell thymic carcinoma characterized by presence of keratin pearl. Lymphoma that characterized by atypical polymorphic lymphocytes, vesicular nucleus, and pyknotic nucleoli, while cytoplasm appears eosinophilic to granular with ill- define borders. Lipoma which appear as irregular shape of adipocytes that lack their nucleus, with scattered infiltration of pyknotic lymphocytes. This is the first pathological report of mixed tumor of thymus gland in rooster that composed from squamous cell thymic carcinoma, lymphoma and lipoma.
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