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| Squamous Carcinoma of Tongue | ||
| Etiology • Associated with tobacco use (cigarettes, snuff, chewing tobacco) and alcohol use • Role for human papillomavirus infection as well | ||
| Pathogenesis • Multistep process associated with chromosomal loss • Exact mechanisms are unclear • Proceed from an intraepithelial lesion to invasive disease, | ||
| Epidemiology • More common in men than women • Patients are usually >50 • 2-4% of carcinomas overall are oral cavity; >95% are squamous | ||
| General Gross Description • Elevated white plaque which may fungate and then undergo central necrosis • Gray white firm cut section •Examples: | ||
| General Microscopic Description • Nests and strands of cells which have eosinophilic often keratinizing cytoplasm • Nuclei are pleomorphic and hyperchromatic with coarsely granular chromatin • Nucleoli may be prominent. •Examples: | ||
| References • Cotran RS, Kumar V, Robbins SL: Robbins Pathologic Basis of Disease. 5th ed. Philadelphia, W.B. Saunders, 1994, pp. 740-1. This link will directly take you to the relevant new literature Squamous Carcinoma of Tongue
| Synopsis by: Melinda Sanders M.D. (T53000M80703)[346]
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