Johnson K.H. and Osborne C.A.
J Am Vet Med Assoc, 1970. 156(7): p.906-912.
A papillary cystadenocarcinoma of the thyroid gland was encountered in a 20 year-old-spayed female Siamese cat. Attempts to treat the neoplasm by surgical extirpation were unsuccessful. The neoplasm metastasized to the regional lymph nodes, adjacent subcutaneous tissue and musculature, parotid salivary gland, and lungs.