title: Mixed follicular-parafollicular carcinoma of the thyroid.
abstract: We present a case of mixed follicular-parafollicular carcinoma of the thyroid. Immunohistochemical studies demonstrated the presence of both thyroglobulin and calcitonin within tumour cells. The recognition of thyroid tumours showing this mixed differentiation may have implications for existing concepts of C-cell and follicular cell development in the human thyroid.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology* / Q000601:surgery; D000328:Adult; D002277:Carcinoma / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D013964:Thyroid Neoplasms / Q000473:pathology* / Q000601:surgery