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Seborrheic keratosis (SK) is a benign epidermal neoplasm which presents as an eruption of one to hundreds of  papules or plaques. The major potential burden for the patient is a cosmetic nuisance, but a florid acute appearance of SK lesions can rarely be associated with an... READ MORE

How is seborrheic keratosis amenable to treatment? Here follows a description some of the available and tried treatments and then a criticism of the methodology of all applied treatments follows:     1. Actual Guidelines According to Dubertret et al.( Thérapeutique... READ MORE

Synonyms: Verruga peruana, Peruvian warts, Oroya fever, Carrion’s disease Spanish (Español): enfermedad de Carrión, fiebre de la Oroya, verruga peruana Limited to Colombia, Ecuador and Peru, the disease is caused by a facultative intracellular bacterium called Bartonella... READ MORE

PDT: HOW DOES IT WORK ? PDT= photosensitizer + light + oxygen It was discovered in early 1900’s by a medical student (the professor claimed it first as his own !) Its action is through the generation of a singlet oxygen by using drugs and light. Porphyrin sensitizer* + light +... READ MORE

Cryotherapy is more effective when an appropriate technique is used. This depends on the specific effect (lien) one wishes to obtain, the shape of the lesion as well as the “strength” of the freezing.     Open spray technique: method: directly spraying the lesion... READ MORE

The skin microbiome: current perspectives and future challenges. Chen YE, Tsao H. J Am Acad Dermatol. 2013 Jul;69(1):143-55. doi: 10.1016/j.jaad.2013.01.016.     Different bacteria, fungi and viruses live on the skin. The type of microorganisms as well as their density... READ MORE

Incidence of Acne in the first 20 years of life: -3% of affected individuals are neonates -6% in childhood (pre-adolescents) -91% in teenagers (adolescents…predictably)   Thorough examination must be done in children to rule out differential diagnosis: -keratosis pilaris... READ MORE

Prevalence is the proportion of the population affected by a skin condition at any given time. This study was done out of 1000 people. Eczema (Dermatitis) = 9 % Acne = 8.6 % Infections = 4.6 % Viral Warts = 3.4 % Psoriasis = 1.6 %     Bibliography: Dermatology, An... READ MORE

Verrue (verrue vulgaire)     Quelle est la cause des verrues ? Les verrues sont des croissances indolores de la peau provoquées par un virus. Elles peuvent apparaître sur n’importe quel endroit du corps, comme sur le visage, sur les avant bras ou encore les doigts. Les... READ MORE

How is laser used to treat skin disorders? Laser is a very pure and intense light source. When the laser light shines onto the skin, a certain target in the skin absorbs the laser light. Different targets in the skin will absorb laser light of different characteristics. After... READ MORE