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Skin sloughing is the process of shedding dead surface cells from the skin. It is most associated with cosmetic skin maintenance via exfoliation , but can also occur biologically or for medical reasons.
An eschar (/ ˈ ɛ s k ɑːr /; Greek: ἐσχάρᾱ, romanized: eskhara; Latin: eschara) is a slough [1] or piece of dead tissue that is cast off from the surface of the skin, particularly after a burn injury, but also seen in gangrene, ulcer, fungal infections, necrotizing spider bite wounds, tick bites associated with spotted fevers and exposure to cutaneous anthrax.
A dragonfly in its radical final moult, metamorphosing from an aquatic nymph to a winged adult.. In biology, moulting (British English), or molting (American English), also known as sloughing, shedding, or in many invertebrates, ecdysis, is a process by which an animal casts off parts of its body to serve some beneficial purpose, either at specific times of the year, or at specific points in ...
The histological picture involves thinner, weaker attachments of the skin lesion itself to the normal skin – resulting in easier dislodgement. The formation of new blisters upon slight pressure (direct Nikolsky) and shearing of the skin due to rubbing (indirect Nikolsky) is a sign of pemphigus vulgaris, albeit not a 100% reliable diagnosis. [ 8 ]
According to Robbins's pathology, "ulcer is the breach of the continuity of skin, epithelium or mucous membrane caused by sloughing out of inflamed necrotic tissue." [citation needed] Common forms of ulcers recognized in medicine include: [citation needed] Ulcer (dermatology), a discontinuity of the skin or a break in the skin.
Sloughing of the epidermis and exposure of the dermal layer clinically characterize moist desquamation. Moist desquamation presents as tender, red skin associated with serous exudate , hemorrhagic crusting, and has the potential for development of bullae .
Video production is playing an increased role; medical photographers are often responsible for video conferencing from operating rooms and are involved in tele-medicine. Departments employing medical photographers tend to number five people or less. Some medical photographers specialize in areas such as ophthalmology and dermatology.
The length and angle of each flap are usually the same to avoid mismatched flaps that may be difficult to close. Some possible complications of Z-plasty include flap necrosis, haematoma (blood clot) formation under the flaps, wound infection, trapdoor effect and sloughing (necrosis) of the flap caused by wound tension and inadequate blood supply.