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Squamous-cell carcinoma (SCC), also known as epidermoid carcinoma, comprises a number of different types of cancer that begin in squamous cells. [1] These cells form on the surface of the skin, on the lining of hollow organs in the body, and on the lining of the respiratory and digestive tracts .
There is a risk of metastasis starting more than 10 years [citation needed] after diagnosable appearance of squamous-cell carcinoma, but the risk is low, [specify] though much [specify] higher than with basal-cell carcinoma. Squamous-cell cancers of the lip and ears have high rates of local recurrence and distant metastasis. [27]
Squamous-cell: hard lump with a scaly top [2] Melanoma: mole that has changed in size, shape, color, or has irregular edges [3] Types: Basal-cell skin cancer (BCC), squamous-cell skin cancer (SCC), melanoma [1] Causes: Ultraviolet radiation from the Sun or tanning beds [4] Risk factors: Light skin, poor immune function [1] [5] Diagnostic method ...
Basal cell carcinoma; Squamous cell carcinoma; Squamous cell skin cancer; Skin adnexal tumors (e.g. sebaceous carcinoma) Melanoma; Merkel cell carcinoma; Keratoacanthoma; Sarcomas of primary cutaneous origin (e.g. dermatofibrosarcoma protuberans) Lymphomas of primary cutaneous origin (e.g. mycosis fungoides)
Laryngeal cancer may spread by: direct extension to adjacent structures, metastasis to regional cervical lymph nodes, or via the blood stream. The most common site of distant metastases is the lung. Laryngeal cancer occurred in 177,000 people in 2018, and resulted in 94,800 deaths (an increase from 76,000 deaths in 1990).
About 5.4 million basal and squamous cell cancers (the two most common types of skin cancer) are diagnosed each year in the U.S., and about 80% of those are basal cell cancers, the American Cancer ...
Carcinoma of the tonsil is a type of squamous cell carcinoma. The tonsil is the most common site of squamous cell carcinoma in the oropharynx. It comprises 23.1% of all malignancies of the oropharynx. [1] The tumors frequently present at advanced stages, and around 70% of patients present with metastasis to the cervical lymph nodes. [2].
All squamous cell carcinoma lesions are thought to begin via the repeated, uncontrolled division of cancer stem cells of epithelial lineage or characteristics. Accumulation of these cancer cells causes a microscopic focus of abnormal cells that are, at least initially, locally confined within the specific tissue in which the progenitor cell resided.