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Normal desquamation can be visualized by immersing skin in warm or hot water; inducing the outermost layer of corneocytes to shed (such as is the case after a hot shower or bath). [citation needed] Corneocytes are held together by corneodesmosomes. In order for desquamation to occur these corneodesmosome connections must be degraded. [2]
Desquamative gingivitis is a descriptive clinical term, not a diagnosis. [1] Dermatologic conditions cause about 75% of cases of desquamative gingivitis, and over 95% of the dermatologic cases are accounted for by either oral lichen planus or cicatricial pemphigoid. [1]
Moist desquamation is a rare complication for most forms of radiology, however it is far more common in fluoroscopy where threshold doses lie between 10-15 Gy [1] and increasingly common above 15 Gy. It has been noted that fractionation of fluoroscopic procedures significantly reduces the likelihood of moist desquamation occurring. In animal ...
Desquamation is the process of cell shedding from the surface of the stratum corneum, balancing proliferating keratinocytes that form in the stratum basale. These cells migrate through the epidermis towards the surface in a journey that takes approximately fourteen days.
Urea dissolves the intercellular matrix of the cells of the stratum corneum, promoting desquamation of scaly skin, eventually resulting in softening of hyperkeratotic areas. [5] In nails , urea causes softening and eventually debridement of the nail plate.
This process is a normal protective mechanism of the skin to prevent pathogens from colonizing the skin, and is referred to as desquamation. In healthy skin, desquamation is an invisible process and the stratum corneum is turned over completely within 2–4 weeks, while maintaining the tissue thickness. [9]
In 1965 Liebow described 18 patients with pulmonary lesions with large alveolar cell proliferation and desquamation. Liebow also noted that the walls of the patient's distal airways were thickened. [23] The name "desquamative interstitial pneumonia" originated from the assumption that the disease was caused by epithelial cell desquamation. [1] [4]
Exfoliating slabs of granite, on Half Dome in Yosemite National Park, USA. Exfoliating granite is a granite undergoing exfoliation, or onion skin weathering (desquamation).The external delaminated layers of granite are gradually produced by the cyclic variations of temperature at the surface of the rock in a process also called spalling.