1. Goldman, R.L.: Primary squamous cell carcinoma of the thyroid gland: report of a case and review of literature. Am. Surg. 30:247, 1964
2. Saxen, E.: Squamous metaplasia in the thyroid gland and histogenesis of epidermoid carcinoma of the thyroid. Acta Pathol. Microbiol. Immunol. Scand. 28:55, 1951
3. Katagiri, M., Yamane, Y., Yasuda, K., Harada, T., Tsukayama, C.: Squamous cell carcinoma originating in the thyroid gland?report of two cases and a review of literature. J. Jpn. Soc. Clin. Surg. 50:2326, 1989 (Japanese)
4. Kurihara, T., Koyama, T., Ishida, T., et al.: A primary squamous cell carcinoma of the thyroid: an ultrastructural and immunohistological study of two cases. Jpn. J. Cancer Clin. 37:655, 1991 (Japanese)
5. Harada, T., Ito, K., Shimaoka, K, Hosoda, Y., Yakumaru, K.: Fatal thyroid carcinoma: anaplastic transformation of adenocarcinoma. Cancer 39:2588, 1977