Eitology
Acne is due to follicular irritation and changes in the sebaceous secretion, leading to the formation of comedones and subsequent inflammatory changes. Acne is most frequent between the ages of 12 and...
View ArticlePathology
This disease is characterized by a perifollicular inflammation around comedones which are composed of sebum and keratotic as well as parakeratotic cells and are located in the pilosebaceous follicles....
View ArticlePyoderma Faciale
Under the title pyoderma faciale, O’Leary and Kierland described a diseases occurring on the face consisting of an intense reddish or cyanotic erythema, combined with superficial and deep abscesses and...
View ArticleHistology
The histologic changes vary according to the stage of the process, consisting at first of vascular dilatation and low-grade inflammatory changes about the vessels and particularly about the sebaceous...
View ArticleErythrose Peribuccale Pigmentrire
This disease, which was described by Brocq in 1923, is characterized by a combination of erythema and diffuse brownish or brownish-red pigmentation of the perioral region. Although most marked about...
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