1) Thompson LDR: Squamous cell carcinoma variants of the head and neck. Curr Diagn Pathol 2003; 9: 384-396.
2) Jordan RC, Regezi JA: Oral spindle cell neoplasm; a review of 307 cases. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2003; 95: 717-724.
3) Ferlito A: Histological classification of larynx and hypopharynx cancers and their clinical implications; pathologic aspects of 2052, malignant neoplasms diagnosed at the ORL Department of Padua, University from 1966 to 1976. Acta Otolaryngol Suppl 1976; 342: 1-88.
4) Lester DR, Thompson LD, Wieneke JA, et al: Spindle cell (sarcomatoid) carcinomas of the larynx; a clinicopathologic study of 187 cases. Am J Surg Pathol 2002; 26: 153-170.
5) Cardesa A, Zidar N: World Health Organization Classification of Tumors. Pathology and Genetics of Head and Neck Tumours; Oral Cavity and Oropharynx. IARC Press; 2005: pp 127-128.