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Reactive Perforating Collagenosis
Reactive perforating collagenosis is a rare, familial, nonpuritic skin disorder characterized by papules that grow in a diameter of 4 to 6mm and develop a central area of umbilication to which keratinous material is lodged.James, William; Berger, Timothy; Elston, Dirk (2005). ''Andrews' Diseases of the Skin: Clinical Dermatology''. (10th ed.). Saunders. Page 510. . The cause of reactive perforating collagenosis is unknown. Clinical Features Inherited form Keratotic papules measuring 1 to 6 mm develop on the extensor surface of the hands, the elbows, and the knees following superficial trauma. These lesions are painless. They appear as pin-sized lesions that grow to a papule of about 6mm in the following 3–5 weeks. They undergo spontaneous resolution in about 6–8 weeks leaving residual scarring. Lesions may recur throughout life. Cold weather is one of the factors known to trigger recurrences. Acquired form In this form, keratotic papules develop on the trunk and ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cutaneous Condition
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. The major function of this system is as a barrier against the external environment. Conditions of the human integumentary system constitute a broad spectrum of diseases, also known as dermatoses, as well as many nonpathologic states (like, in certain circumstances, melanonychia and racquet nails). While only a small number of skin diseases account for most visits to the physician, thousands of skin conditions have been described. Classification of these conditions often presents many nosological challenges, since underlying causes and pathogenetics are often not known. Therefore, most current textbooks present a classification based on location (for example, conditions of the mucous membrane), morphology ( chronic blistering conditions), cause (skin conditions result ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keratine
Keratin () is one of a family of structural fibrous proteins also known as ''scleroproteins''. Alpha-keratin (α-keratin) is a type of keratin found in vertebrates. It is the key structural material making up scales, hair, nails, feathers, horns, claws, hooves, and the outer layer of skin among vertebrates. Keratin also protects epithelial cells from damage or stress. Keratin is extremely insoluble in water and organic solvents. Keratin monomers assemble into bundles to form intermediate filaments, which are tough and form strong unmineralized epidermal appendages found in reptiles, birds, amphibians, and mammals. Excessive keratinization participate in fortification of certain tissues such as in horns of cattle and rhinos, and armadillos' osteoderm. The only other biological matter known to approximate the toughness of keratinized tissue is chitin. Keratin comes in two types, the primitive, softer forms found in all vertebrates and harder, derived forms found only amon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elastosis Perforans Serpiginosa
Elastosis perforans serpiginosa is a unique perforating disorder characterized by transepidermal elimination of elastic fibers and distinctive clinical lesions, which are serpiginous in distribution and can be associated with specific diseases.Freedberg, et al. (2003). ''Fitzpatrick's Dermatology in General Medicine''. (6th ed.). Page 1041. McGraw-Hill. . File:Histopathology of elastosis perforans serpiginosa.jpg, Histopathology of elastosis perforans serpiginosa: Degenerated elastic fibers and transepidermal perforating canals (arrow points at one of them) File:Autosomal dominant - en.svg, This condition is inherited in an autosomal dominant manner. See also * List of cutaneous conditions * Poikiloderma vasculare atrophicans Poikiloderma vasculare atrophicans (PVA), is a cutaneous condition (skin disease) characterized by hypo- or hyperpigmentation (diminished or heightened skin pigmentation, respectively), telangiectasia and skin atrophy. Other names for the conditio ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Cutaneous Conditions
Many skin conditions affect the human integumentary system—the organ system covering the entire surface of the body and composed of skin, hair, nails, and related muscle and glands. The major function of this system is as a barrier against the external environment. The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin.Burns, Tony; ''et al''. (2006) ''Rook's Textbook of Dermatology CD-ROM''. Wiley-Blackwell. . Within the latter type, the hairs occur in structures called pilosebaceous units, each with hair follicle, sebaceous gland, and associated arrector pili muscle. In the embryo, the epidermis, hair, and glands form from the ectoderm, which is chemically influenced by the underlying mesoderm th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ILDS
The International League of Dermatological Societies (ILDS) is a non-governmental organization that works closely with the World Health Organization. It was founded in 1935, but because of World War II no congresses were held until 1952. It is governed by the International Committee of Dermatology. The ILDS is the parent organization of the International Foundation for Dermatology, founded in 1987. After the publication of ICD-10, the ILDS produced a series of compatible extensions for use in dermatology Dermatology is the branch of medicine dealing with the skin.''Random House Webster's Unabridged Dictionary.'' Random House, Inc. 2001. Page 537. . It is a speciality with both medical and surgical aspects. A dermatologist is a specialist medical .... References External links Official site HistoryInternational Foundation for DermatologyApplication to Dermatology of International Classification of Disease (ICD-11) Organizations established in 1935 Dermatology organi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abnormalities Of Dermal Fibrous And Elastic Tissue
The Spill Canvas is an American alternative rock band from Sioux Falls, South Dakota. Known for their hits "All Over You" "Our Song" and "Staplegunned", as well as several emo classics like "All Hail the Heartbreaker" "The Tide" and "Polygraph, Right Now!" Career Lead singer and guitarist Nick Thomas (born May 26, 1984) grew up in Sioux Falls, South Dakota and began learning how to play guitar at 11 years old. Thomas attended Roosevelt High School and sang with the school concert choir and men's choir. He began performing at local venues on his acoustic guitar at 15-years-old and self-released his first punk rock and acoustic CD titled ''The Blur of Motions'' in 2000 with Prairie Dog Studios. Thomas envisioned the Spill Canvas in the summer of 2001 as a collage of unique musical sounds and ideas coming together to form a unique palette. Vocalist Becca Flinn approached Thomas following a solo show and the two formed the beginnings of the band, adding bassist Alan Burkhard and v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
