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Émile Vidal
Jean Baptiste Émile Vidal (18 June 1825 – 16 June 1893) was a French dermatologist who was a native of Paris. He studied medicine in Tours and Paris, becoming ''médecin des hôpitaux'' in 1862. For much of his career he was associated with the Hôpital Saint-Louis (1867–1890) in Paris. In 1883 he became a member of the ''Académie de Médecine''. In 1893, Vidal was the first to recognize and define the transmission of herpes simplex virus from one person to another. He is remembered for his investigations of lupus erythematosus, lupus and skin lichenification. His name is associated with "pityriasis circinata et marginata of Vidal", a disorder that is synonymous to pityriasis rosea, and "Vidal's disease", an historical name for lichen simplex chronicus. Publications * ''Considérations sur le rhumatisme articulaire chronique primitif'', 1855 * ''Du Pityriasis'', 1877 * ''Inoculabilité de quelques affections cutanées'', 1877 * ''Du pityriasis circiné et margi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pityriasis Circinata
Pityriasis commonly refers to flaking (or scaling) of the skin. The word comes from the Greek πίτυρον 'bran'. Classification Types include: * Pityriasis alba, dry, fine-scaled, pale patches on the face * Pityriasis lichenoides chronica, caused by a hypersensitivity reaction to infectious agents * Pityriasis lichenoides et varioliformis acuta, a disease of the immune system * Pityriasis rosea, a type of skin rash ** Pityriasis circinata, * Pityriasis rubra pilaris, reddish-orange patches (Latin: ''rubra'') on the skin * Pityriasis versicolor, a skin eruption on the trunk and proximal extremities, usually caused by a fungus * Dandruff, historically called ''Pityriasis capitis'' * Pityriasis amiantacea, condition of the scalp in which thick tenaciously adherent scale infiltrates and surrounds the base of a group of scalp hairs See also * Desquamation * List of cutaneous conditions Many skin conditions affect the human integumentary system—the organ system cove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1893 Deaths
Events January * January 2 – Webb C. Ball introduces railroad chronometers, which become the general railroad timepiece standards in North America. * January 6 – The Washington National Cathedral is chartered by Congress; the charter is signed by President Benjamin Harrison. * January 13 ** The Independent Labour Party of the United Kingdom has its first meeting. ** U.S. Marines from the ''USS Boston'' land in Honolulu, Hawaii, to prevent the queen from abrogating the Bayonet Constitution. * January 15 – The ''Telefon Hírmondó'' service starts with around 60 subscribers, in Budapest. * January 17 – Overthrow of the Kingdom of Hawaii: Lorrin A. Thurston and the Committee of Safety (Hawaii), Citizen's Committee of Public Safety in Hawaii, with the intervention of the United States Marine Corps, overthrow the government of Queen Liliuokalani. * January 21 – The Tati Concessions Land, formerly part of Matabeleland, is formally annexed to the Bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1825 Births
Events January–March * January 4 – King Ferdinand I of the Two Sicilies dies in Naples and is succeeded by his son, Francis I of the Two Sicilies, Francis. * February 3 – Vendsyssel-Thy, once part of the Jutland peninsula forming westernmost Denmark, becomes an island after a flood drowns its wide isthmus. * February 9 – After no presidential candidate receives a majority of United States Electoral College votes following the 1824 United States presidential election, the United States House of Representatives elects John Quincy Adams President of the United States in a contingent election. * February 10 – Gideon Mantell names and describes the second known dinosaur ''Iguanodon''. * February 10 – Simón Bolívar gives up his title of dictator of Peru and takes the alternative title of ''El Libertador''. * February 12 – Second Treaty of Indian Springs: The Creek (people), Creek cede the last of their lands in Georgia (U.S. state), Georgia to the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Who Named It
''Whonamedit?'' is an online English-language dictionary of medical eponyms and the people associated with their identification. Though it is a dictionary, many eponyms and persons are presented in extensive articles with comprehensive bibliographies. The dictionary is hosted in Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of ... and was developed by medical historian Ole Daniel Enersen. References External links * Medical websites Medical dictionaries Eponyms in medicine {{online-dict-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis-Anne-Jean Brocq
Louis-Anne-Jean Brocq (; 1 February 1856 – 18 December 1928) was a French dermatologist born in Laroque-Timbaut, a village in the department of Lot-et-Garonne. He practiced medicine in Paris at the Hospice la Rochefoucauld, the Hôpital Broca, and from 1906 to 1921, the Hôpital Saint-Louis. As a young physician he studied and worked with Jean Alfred Fournier (1832–1915), Jean Baptiste Emile Vidal (1825–1893) and Ernest Henri Besnier (1831–1909). Brocq provided early, comprehensive descriptions of numerous skin disorders, including keratosis pilaris, parapsoriasis and a form of dermatitis called "Duhring-Brocq disease" (named with Louis Adolphus Duhring and sometimes referred to as dermatitis herpetiformis). Other eponymous skin diseases named after him are " Brocq's pseudopelade", a condition involving progressive scarring of the scalp, and "Brocq-Pautrier angiolupoid", a specific type of sarcoidosis of the skin named in conjunction with Dr. Lucien-Marie Pautrier (18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichen Simplex Chronicus
Lichen simplex chronicus (LSC) is thick leathery skin with exaggerated skin markings caused by sudden itching and excessive rubbing and scratching. It generally results in small bumps, patches, scratch marks and scale. It typically affects the neck, scalp, upper eyelids, ears, palms, soles, ankles, wrists, genital areas and bottom. It often develops gradually and the scratching becomes a habit. Signs and symptoms People burdened with LSC report pruritus, followed by uncontrollable scratching of the same body region, excessively. Most common sites of LSC are the sides of the neck, the scalp, ankles, vulva, pubis, scrotum, and extensor sides of the forearms. However, due to the stigma associated with chronic scratching, some patients will not admit to chronic rubbing or abrasion. The skin may become thickened and hyperpigmented (lichenified) as a direct result of chronic excoriation. Typically this period of increased scratching is associated with stressors. Causes This is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pityriasis Rosea
Pityriasis rosea is a type of skin rash. Classically, it begins with a single red and slightly scaly area known as a "herald patch". This is then followed, days to weeks later, by an eruption of many smaller scaly spots; pinkish with a red edge in people with light skin and greyish in darker skin. About 20% of cases show atypical deviations from this pattern. It usually lasts less than three months and goes away without treatment. Sometimes malaise or a fever may occur before the start of the rash or itchiness, but often there are few other symptoms. While the cause is not entirely clear, it is believed to be related to human herpesvirus 6 (HHV6) or human herpesvirus 7 (HHV7). It does not appear to be contagious disease, contagious. Certain medications may result in a similar rash. Diagnosis is based on the symptoms. Evidence for specific treatment is limited. About 1.3% of people are affected at some point in time. It most often occurs in those between the ages of 10 and 35. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichenification
Lichenification is a cutaneous condition caused by consistent irritation of the skin, such as scratching or rubbing, but can also be caused by friction from clothing or chemical irritants. Lichenification can develop from scratching existing skin conditions that cause itching such as eczema or psoriasis (secondary lichenification), but also appears on previously healthy skin when repeatedly aggravated (primary lichenification). Often times, in the case of primary lichenification, skin irritation is self inflicted due to psychiatric conditions, usually obsessive-compulsive disorder or anxiety disorder. Appearance The initial stage of lichenification presents as hyperpigmentation of the skin, which is followed by the appearance of small hard papules, which can often be perceived only by touch, giving the lesion a bumpy or “pebbly” texture. When these papules are damaged, they will excrete blood and pus Pus is an exudate, typically white-yellow, yellow, or yellow-brown, f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dermatologist
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 doctor who manages diseases related to skin. Etymology Attested in English in 1819, the word "dermatology" derives from the Greek δέρματος (''dermatos''), genitive of δέρμα (''derma''), "skin" (itself from δέρω ''dero'', "to flay") and -λογία '' -logia''. Neo-Latin ''dermatologia'' was coined in 1630, an anatomical term with various French and German uses attested from the 1730s. History In 1708, the first great school of dermatology became a reality at the famous Hôpital Saint-Louis in Paris, and the first textbooks (Willan's, 1798–1808) and atlases ( Alibert's, 1806–1816) appeared in print around the same time.Freedberg, et al. (2003). ''Fitzpatrick's Dermatology in General Medicine''. (6th ed.). McGr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lupus Erythematosus
is a collection of autoimmune diseases in which the human immune system becomes hyperactive and attacks healthy tissues. Symptoms of these diseases can affect many different body systems, including joints, skin, kidneys, blood cells, heart, and lungs. The most common and most severe form is . Signs and symptoms Symptoms vary from person to person, and may come and go. Almost everyone with lupus has joint pain and swelling. Some develop arthritis. Frequently affected joints are the fingers, hands, wrists, and knees. Other common symptoms include: * chest pain during respiration * joint pain (stiffness and swelling) * painless oral ulcer * fatigue * weight loss * headaches * fever with no other cause * Skin lesions that appear worse after sun exposure * general discomfort, uneasiness, or ill feeling (malaise) * hair loss * sensitivity to sunlight * a "butterfly" facial rash, seen in about half of people with SLE * swollen lymph nodes Photosensitivity Photosensitiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herpes Simplex Virus
Herpes simplex virus 1 and 2 (HSV-1 and HSV-2) are two members of the Herpesviridae#Human herpesvirus types, human ''Herpesviridae'' family, a set of viruses that produce Viral disease, viral infections in the majority of humans. Both HSV-1 and HSV-2 are very common and Infectious disease, contagious. They can be spread when an infected person begins viral shedding, shedding the virus. As of 2016, about 67% of the world population under the age of 50 had HSV-1. In the United States, about 47.8% and 11.9% are estimated to have HSV-1 and HSV-2, respectively, though actual prevalence may be much higher. Because it can be transmitted through any intimate contact, it is one of the most common sexually transmitted infections. Symptoms Many of those who are infected never develop symptoms. Symptoms, when they occur, may include watery blisters in the Human skin, skin of any location of the body, or in mucous membranes of the mouth, lips, nose, genitals, or eyes (herpes simplex ker ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
