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The immune system's role in the precise pathogenesis of TEN remains unclear. It appears that a certain type of immune cell (cytotoxic CD8+ T cell) is primarily responsible for keratinocyte death and subsequent skin detachment. Keratinocytes are the cells found lower in the epidermis and specialize in holding the surrounding skin cells together ...
A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system—the organ system that encloses the body and includes skin, nails, and related muscle and glands. [1] The major function of this system is as a barrier against the external environment. [2]
A failure to correctly regulate these processes leads to skin disorders developing. [4] Cells of the stratum corneum contain a dense network of keratin, a protein that helps keep the skin hydrated by preventing water evaporation. These cells can also absorb water, further aiding in hydration. In addition, this layer is responsible for the ...
In short, melasma is a chronic skin condition that appears as darkened areas on the face due to an overproduction of melanin, says Gina Charles, MO, a family physician specializing in skincare. It ...
Poikiloderma vasculare atrophicans, or PVA, indicates that extra or altered skin pigmentation ("poikiloderma") [10] is occurring, associated with heightened visibity of capillaries ("vasculare", referring to telangiectasia) under the skin, related to thinning and wasting away ("atrophicans") of the skin and its tissue. Telangiectasia is an ...
The effects of these lymphomas on the skin typically progress with the disease. It is most common to experience patches or plaques on the skin. The initial sloughing of the skin in this lymphoma can be confused for nonthreatening inflammatory conditions due to the lack of cancer cells in the affected areas. [citation needed]
Overview of signal transduction pathways involved in apoptosis. Cell death is the event of a biological cell ceasing to carry out its functions. This may be the result of the natural process of old cells dying and being replaced by new ones, as in programmed cell death, or may result from factors such as diseases, localized injury, or the death of the organism of which the cells are part.
Discoid lupus erythematosus is the most common type of chronic cutaneous lupus (CCLE), an autoimmune skin condition on the lupus erythematosus spectrum of illnesses. [1] [2] It presents with red, painful, inflamed and coin-shaped patches of skin with a scaly and crusty appearance, most often on the scalp, cheeks, and ears.