title: A poorly-differentiated squamous cell thymoma in a chicken with lymphoma.
abstract: Thymic carcinomas are rare in birds. A poorly-differentiated squamous cell thymoma was found in a chicken in association with a lymphoma caused by Marek's disease. Immunohistochemical techniques with different tumour markers were applied in order to determine the histogenesis of the thymic tumour cells. A positive immunoreaction of the tumour cells to cytokeratin, considered a specific marker for epithelial tumours, confirmed the diagnosis of a thymoma.
authors.affiliation: Departamento de Patologia Animal, Facultad de Veterinaria, Universidad de Santiago de Comportela, Spain.
authors.forename: L
authors.initials: L
authors.lastname: Balaguer
authors.forename: J
authors.initials: J
authors.lastname: Romano
authors.forename: A
authors.initials: A
authors.lastname: Mora