BLAISE: blaschkolinear acquired inflammatory skin eruption INTRODUCTION Blaschkolinear acquired inflammatory skin eruption (BLAISE) encompasses a variety of skin conditions in children and adults that show striking distribution along the lines of Blaschko and are characterized histopathologically by an inflammatory infiltrate. The most common presentations of BLAISE are blaschkitis, which affec...

Linear psoriasis is a rare entity which is commonly confused with inflammatory linear verrucous epidermal nevus. We report a 25-year-old man who had linear psoriasis along Blaschko lines in a unilateral distribution on the left side of the body. Our diagnosis was based on a combination of historical, clinical, histopathological evidence and response to treatment.

We have previously shown that frontoparietal scleroderma en coup de sabre, a type of linear scleroderma that affects the face and scalp, follows the lines of Blaschko, but the question whether linear scleroderma that occurs in the limbs follows Blaschko's lines has not been answered. We describe the case of a 4-year-old girl with multiple morphea showing remarkable unilateral systematized distr...

Lichen planus (LP) is a skin disease characterized by violaceous, polygonal, flat-topped papules and plaques. The form with lichenoid papules in linear distribution is called linear lichen planus (LLP). It is usually distributed unilaterally and follows Blaschko lines. Lichen planus is seen in less than 0.2% of all LP patients [1]. To our knowledge, there has been no LPP case due to orthopedic ...

common acquired nevi and an otherwise normal clinical examination. Congenital melanocytic nevi are often classified according to their size [1] . Another attempt of classification in two groups has recently been proposed: type I, the most frequent, with a single lesion involving one anatomic area and type II, less common, with a larger lesion and dozens of smaller ones, with a similar pattern o...

Porokeratotic eccrine ostial and dermal duct nevus (PEODDN) is known as an uncommon disorder of keratinization in which acrosyringium is involved; however, its causes have yet remained unknown. It is presented clinically by discrete keratotic papules on distal extremities arranged in a linear pattern along Blaschko lines. Histopathologically, it is characterized by cornoid lamella, which is alm...