Acne Keloidalis Nuchae (AKN) is also referred to as Folliculitis Keloidalis, Folliculitis Keloidalis Nuchae, and simply Acne Keloidalis. Some authors point out that this is a follicular disorder and has nothing to do with acne. It is a chronic condition that affects the nape of the neck which progresses to keloidal scarring and associated alopecia. … Read more »
Hidradenitis Suppurativa (HS) also referred to as Acne Inversa, was first described in 1839 by the French physician Frederick Velpeau and subsequently was referred to as Velpeau’s disease. In 1854 Aristide Verneuil also described this disorder so in early literature it was also referred to as Verneuil’s disease. It is believed that Karl Marx had… Read more »
Many of my photographs have been used in the Dermatology textbook Andrews’ Diseases of the Skin. If you look at the latest edition you will see these first two images. Pyoderma Faciale is an uncommon eruptive facial disorder consisting of a very fulminant onset of superficial and deep abscesses and cystic lesions. At times sinus… Read more »
The most common drug induced form of acne is caused by topical and systemic steroids. The picture above and below demonstrates what can happen if a high potency topical steroid is used on the face. This is very difficult to treat, and essentially you have to discontinue the high potency steroid (usually class I or… Read more »
Acne Vulgaris is what you commonly call…acne. It is a chronic inflammatory disease of the pilosebaceous follicles and is characterized by comedones (closed comedo or white heads and open comedo or black heads), papules, pustules, nodules, and often scars. The comedo is the primary lesion of acne. Acne primarily involves the face, neck, upper trunk… Read more »
Rosacea is characterized by persistent erythyema of the face, particularly the cheeks and nose. It occurs most commonly in light skinned individuals, women greater than men, with onset between the ages of 30-50. There are factors that can promote or exacerbate rosacea–extremes of temperature (very hot or cold), alcohol (W.C. Fields classic example of alcohol… Read more »