Basal Cell Carcinoma
In general, three
are three main types of cancer that develop from skin cells (keratinocytes): melanoma, squamous cell carcinoma, basal cell
carcinoma. They differ from one another only by characteristics and prognosis. Some promptly develop to serious
complications, while other types slowly grow and respond well to treatment in most cases.
Basal cell carcinoma is a cancer of the skin that responds favorably to treatment and that barely
causes metastases, spreading of the cancer to other parts of the body. Despite there are
other form of skin malignancy, squamous cell carcinoma and malignant melanoma, it is the most common cancer in
the United States and its incidence appears to be increasing. The tumor particularly affects blond or red skin
individuals, and risk increases with prolonged or regular exposure to sunlight and ultraviolet radiation.
Basal cell carcinoma usually affects people aged 60 or over, and grows from the outermost layer of
the skin (keratinocytes), in the deep part of the epidermis. The cancer develops and localizes mostly on the face (eyes, lips, forehead
...), scalp and neck. However, in spite of easy visibility, the diagnosis is confirmed with a biopsy followed by
Basal cell carcinoma develops slowly and does not cause metastases. It may take different aspects like a trivial
painless skin lesion, slightly raised (slightly
raised flat-topped lesion for instance),
often reddish in color. It can also take a similar form to that of eczema or a scar.
In addition, the cancer
can take many forms, which can differ from one patient to another. Please see basal cell carcinoma symptoms for more
basal-cell carcinomas are divided into many subtypes, named depending on the anatomy of cells or tissues
this is one of the most common forms of classic
basal-cell carcinoma which tends to occur on the sun-exposed areas of the body, mainly head and
basal-cell carcinoma – this type
of tumor has a dome-shaped, and characterized by blue-gray cystic nodules. It can develop on any sun-exposed
area of the body.
tends to be aggressive and causes serious scars. It is also known as morpheaform basal-cell carcinoma, and
characterized by distinct clinical and histologic appearance.
this is another aggressive form of skin cancer and causes deep
painful lesions, which can take different shapes.
basal-cell carcinoma – this form
of cancer causes a micronodular growth to form under the skin. The
nodulemay be painful.
basal-cell carcinoma, also known
as "superficial multicentric basal-cell carcinoma", this tumor tends to develop on the trunk and characterize
by a red patch on the skin.
basal-cell carcinoma – this
cancer leads to an
abnormal increase in the concentration of melanin in the melanocytes. It is very
rare in white people (about 20%) and common among the Chinese (up to 80%).
Rodent ulcer – this is a form of nodular basal cell carcinoma which
causes the appearance of large skin lesion with central necrosis. The cancer is also called "Jacobi