Schneiderian Papilloma Exophytic

Papiloma Nasal

Fig. 1.29 Inverted papilloma A Low magnification showing hyperplastic aggregates of well-demarcated squamous and respiratory epithelium extending throughout the stroma. Note the absence of mucoserous glands. B Papilloma composed partially of hyperplastic, ciliated respiratory epithelium. Note the epithelial transmigration of neutrophils and the delicate basement membrane. C HPV nuclear and cytoplasmic reactivity can be seen in some inverted papillomas, usually in the same nuclei which exhibit...

Larynx Cancer Relative Risk Cigarettes

Global Cancer Incidence

Fig. 3.2 A Diagram of the larynx and pre-epiglottic space. B Diagram and boundaries of the oropharynx and hypopharynx, with relationship to oral cavity and larynx, respectively. conus elasticus inferiorly, the thyroid cartilage laterally, the quadrangular membrane medially and the pyriform sinus posteriorly. The pre-epiglottic space, also filled with adipose and connective tissue, is triangular shaped. It is bounded anteriorly by the thyroid cartilage and thyrohyoid membrane, posteriorly by the...

Squamous cell carcinoma

Nasal Squamous Cell Carcinoma

Thompson A malignant epithelial neoplasm originating from the mucosal epithelium of the nasal cavities or paranasal sinuses that includes a keratinizing and a non-kera-tinizing type. Squamous cell carcinoma 8070 3 Verrucous carcinoma 8051 3 Papillary squamous cell carcinoma Spindle cell carcinoma 8074 3 Adenosquamous carcinoma Acantholytic squamous cell carcinoma 8075 3 Keratinizing squamous cell carcinoma squamous cell carcinoma. Nonkeratinizing carcinoma...

Papillary hyperplasia

Papillary hyperplasia is an asymptomatic nodular or papillary mucosal lesion typically seen in the palate of patients who wear dentures. Most patients wear ill-fitting dentures, wear dentures continuously 2645 or have poor denture hygiene. Lesions also arise in non-denture wearers, in xerostomia or individuals with a high arched palate. Florid and extensive presentations occur in immunosuppres-sion 937 and HIV infection 2150 . There is sessile nodular papillomatous hyperplasia of epithelium and...