Léonard Marie Lucien Jacquet (; 30 October 1860 in Sauviat – 20 December 1914 in

Royan Royan (; in the Saintongeais dialect; ) is a commune and town in the south-west of France, in the Departments of France, department of Charente-Maritime in the Nouvelle-Aquitaine region. Capital of the Côte de Beauté, Royan is one of the mai ...

) was a French

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 medi ...

and syphilogist. He studied medicine in

Limoges Limoges ( , , ; , locally ) is a city and Communes of France, commune, and the prefecture of the Haute-Vienne Departments of France, department in west-central France. It was the administrative capital of the former Limousin region. Situated o ...

and from 1883 served as an interne in

Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...

, where his instructors included

Ernest Besnier Ernest Henri Besnier (; 21 April 1831 – 15 May 1909, Paris) was a French dermatologist and medical director of the Hôpital Saint-Louis in Paris. Early life Ernest Besnier was born on 21 April 1831 in Honfleur, département Calvados. He ...

and

Georges Maurice Debove Georges Maurice Debove (; 11 March 1845, Clignancourt – 19 November 1920) was a French internist and pathologist. In 1869 he received his internship in Paris, followed by agrégation in 1878. From 1890 to 1900, he served as a professor to the ...

. He received his doctorate in 1888, became ''médecin des hôpitaux'' in 1896, and from 1903 worked at the

Hôpital Saint-Antoine Hôpital Saint-Antoine () is a university hospital of the Assistance Publique–Hôpitaux de Paris (AP-HP) located in the 12th arrondissement of Paris at ''184, rue du Faubourg-Saint-Antoine''. It is part of the AP-HP Sorbonne University Hospi ...

in Paris.Leonard Marie Lucien Jacquet
at

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 bibliograp ...

He is remembered for his research on

pruritus An itch (also known as pruritus) is a sensation that causes a strong desire or reflex to scratch. Itches have resisted many attempts to be classified as any one type of sensory experience. Itches have many similarities to pain, and while both ...

and the pathogenesis of pruriginous eruptions, and studies of

alopecia areata Alopecia areata (AA), also known as spot baldness, is a condition in which hair loss, hair is lost from some or all areas of the body. It often results in a few Baldness, bald spots on the scalp, each about the size of a coin. Psychological st ...

, especially in regards to its etiology as a "reflex neurosis". He also wrote on

eczema Dermatitis is a term used for different types of skin inflammation, typically characterized by itchiness, redness and a rash. In cases of short duration, there may be small blisters, while in long-term cases the skin may become thickened ...

and

urticaria Hives, also known as urticaria, is a kind of skin rash with red or flesh-colored, raised, itchy bumps. Hives may burn or sting. The patches of rash may appear on different body parts, with variable duration from minutes to days, and typically ...

, and on the correlation of digestive disorders to the etiology and treatment of

skin diseases 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 sys ...

.Journal of Cutaneous Diseases Including Syphilis, Volume 33
/ref> The term "Jacquet's erythema" is another name for

diaper rash Irritant diaper dermatitis (IDD, also called a diaper rash or nappy rash) is skin rash in the diaper (in British and Australian English "nappy") area, caused by various skin disorders and/or irritants. Generic irritant diaper dermatitis is charact ...

Published works

With

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, ...

he was co-editor of "''Précis élémentaire de dermatologie''", and with Brocq and Besnier, he made contributions to the four volume "''La pratique dermatologique''". Other written works by Jacquet are: * ''L'Alcoolisme et les classes dirigeantes'', 1902. * ''Pseudo-contagion et fausses épidémies'', 1906. * ''Traitement de la syphilis'' (with Marcel Ferrand), 1908. * ''A propos de la pelade d'origine dentaire'', 1910. * ''Les engelures et leur traitement bio-kinétique'', 1914.Google Search
published works

References

{{DEFAULTSORT:Jacquet, Lucien 1860 births 1914 deaths People from Haute-Vienne French dermatologists