Table of Contents
What kind of skin cells do skin cancers arise from?
There are 3 main types of cells in this layer: Squamous cells: These are flat cells in the upper (outer) part of the epidermis, which are constantly shed as new ones form. When these cells grow out of control, they can develop into squamous cell skin cancer (also called squamous cell carcinoma).
Which skin cancer is a overproduction of cells in the stratum spinosum layer of the epidermis?
Squamous cell carcinoma is a cancer that affects the keratinocytes of the stratum spinosum and presents as lesions commonly found on the scalp, ears, and hands (Figure 2). It is the second most common skin cancer.
What layer of skin does melanoma occur?
Melanoma starts in cells in the skin called melanocytes. These cells are in the deep layer of the epidermis between the layer of basal cells.
What is the stratum spinosum responsible for?
strength and flexibility
The stratum spinosum is partly responsible for the skin’s strength and flexibility. From there the keratinocytes move into the next layer, called the stratum granulosum. This layer gets its name from the fact that the cells located here contain many granules.
What are the different skin cancers?
There are three major types of skin cancer — basal cell carcinoma, squamous cell carcinoma and melanoma.
What are the 3 main types of skin cancer?
Skin cancer — the abnormal growth of skin cells — most often develops on skin exposed to the sun. But this common form of cancer can also occur on areas of your skin not ordinarily exposed to sunlight. There are three major types of skin cancer — basal cell carcinoma, squamous cell carcinoma and melanoma.
What layer does melanoma stratum start?
The deepest layer of the epidermis, located just above the dermis, contains cells called melanocytes. Melanocytes produce the skin’s pigment or color. Melanoma begins when healthy melanocytes change and grow out of control, forming a cancerous tumor.
What happens to cells in the stratum spinosum?
Cells are pushed into stratum spinosum. In the upper part of the spinous layer, cells begin to produce keratohyalin granules having intermediate-associated proteins, filaggrin, and trichohyalin; helps aggregate keratin filaments and conversion of granular cells to cornified cells, i.e. keratinization.