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MOHS surgery: an abbreviation of what ?
Wednesday, October 29th, 2014Well actually a joke but many of us don’t know that Mohs is actually a general surgeon. Dr Frederick E. Mohs (1910-2002), was an American physician and surgeon from WISCONSIN who developed migrographic surgery This “microscopically controlled method of cancer excision” was published in 1941. It a technique, which is used to remove skin neoplasms […]
Papules, pustules, vesicles..where does this come from ?
Tuesday, October 28th, 2014Description of primary and secondary lesions is the ground for modern dermatology and the classification of skin diseases. From 1798 to 1808, different parts of a book called “On cutaneous diseases” was published by the British dermatologist Dr Robert Willan (1757-1812) He also described erythema infectiosum occuring in childhood. The disease is also known as […]
Squamous Cell carcinoma in Situ: who was Bowen ?
Tuesday, October 28th, 2014Squamous cell carcinoma in situ was described in 1912 as a precancerous dermatosis by Dr John Templeton Bowen (1857-1940) He was an American Dermatologist graduated from Harvard and was a Professor of Dermatology. He trained abroad in Germany and Austria. Descriptions from him also include Bowenoid papulosis On a personal basis, he was shy and […]
Warts and Molluscum Contagiosum: How they were shown NOT to be bacterial in origin
Tuesday, October 28th, 2014In the early 20th century (1919) two American dermatologists* sought to determine the origin of warts and molluscum contagiosum: To do this they curetted tissue from the 2 lesions and added saline. after “mincing them”, they passed it through a filter to remove all bacteria (Berkefeld filter) They then auto-inoculated themselves and volunteers with the […]
Porrigo : have you heard this (If not it’s normal !)
Saturday, October 25th, 2014The word comes from latin: Porrigere = to extend If one looks in old dermatology textbooks which includes Alibert’s (1768-1837) famous atlas; on will surely stumble upon this term. By trying to find the skin condition corresponding to this term, one quickly realizes that there is a great confusion surrounding this word. Willan and Bateman […]
Pachyderma: what does it mean ?
Saturday, October 25th, 2014The Greek words of origin are: παχυς= pachus = thick δερμα = derma = skin “Pachyderm” refers to a family of mammals with thickened skin and includes the elephant, hippopotamus and rhinoceros. “Pachys” is frequently used in medical terminology: a lot of human organs can thicken: skull, meninges, spine, lungs, heart, peritoneum… In dermatology the […]
Degos Disease (Atrophic Malignant Papulosis): who was he ?
Saturday, October 25th, 2014Atrophic Malignant Papulosis was described in 1942 by the Parisian dermatologist Dr. Robert Degos (1904-1987) en 1942 in a 49 year old plumber. Biopsies were examined by Dr Achille Civatte and showed marked epidermal atrophy with absence of infiltrate in the dermis, with vascular changes leading to thrombosis. Although extremely rare, Degos was thereafter able […]
Lichen: from the botanical garden to dermatology
Friday, October 24th, 2014The greek word from which this term comes from is : λειχην = leichen = lichen (dartrous) This denomination was given following botanics, to describe dermatoses defined by a gathering of papules or elevated lesions (plaques) which resemble lichen (or dartrous-like) On the famous tree of dermatoses by Alibert in 1828, dartrous (lichen-like) dermatosis figure […]
Blaschko lines: who was Dr Blaschko ?
Friday, October 24th, 2014Blaschko lines are a distribution of skin lines which can be found in certain dermatosis, often genetic. Examples include incontinentia pigmenti, epidermal nevus, lichen striatus… These lines carry the name of Dr Alfred Blaschko (1858-1922), a German dermatologist who described the lines on a statue and published the pictoral diagram in 1901. The cause of […]
Auspitz Sign in Psoriasis – who named it ?
Friday, October 24th, 2014What is it ? It is the presence of pinpoint bleeding when the scales are removed from the surface of psoriasis lesions. In French, it is called “signe de la rosée sanglante” which translates to: dew which looks like blood There are full of histopathological details, but this is nothing surprizing from a master in […]
