[Vascular nevus. A study of its frequency, types and course]. / Nevus vasculares. Estudio de su frecuencia, tipos y evolución.

It is presented a prospective study of vascular nevus during a year, with the finality to know its frequency, types and evolution. In twelve months of study, we founded in 1,485 borns that 14.14% presented those lesiones salmon stain 86%, oport wine 1.35%, capilar hemangioma or in strawberry the 10.81%, cavernous hemangioma the 0.45% and mixed hemangioma the 1.35%. Where more frequent in females that in males as well as from the urban zone in almost more than the half of the cases. Dimensions were between 0 to 5 cm. range, 98% in salmon stain, 95% in strawberry hemangioma, 66.3% mixed hemangioma, 66.6% in oport wine stain distributed in the head in more proportion. There was salmon stain in the nape in 61.7%, 15% in the forehead and in the superior eyelids 14.3%. The familiar antecedents of vascular nevus in brothers was of 4.76%, 5.71% in uncle, 2.98% in parents and 1.43% in grandparents. The evolution was not concluded because of desertion in almost the totality of patients, finalizing with only the 6.66%. Our findings are different from those published in the literature. The total frequency is more in our experience in salmon, oport wine stains and hemangiomas.

[Epidermolysis bullosa and congenital skin aplasia (Bart's syndrome). Report of 3 cases]. / Epidermolisis bulosa y aplasia cutis congénita (síndrome de Bart). Reporte de tres casos.

The association of epidermolysis bullosa (EB), congenital localized absence of skin and nail alterations like anonychia and dystrophy has been denominated Bart's syndrome, which was described nineteen years ago, and associated with simple, junctional and dystrophies epidermolysis bullosa. We explain in this study three cases, which because of their clinic characteristics will correspond to this new entity. All of these cases happened in the city of Trujillo, Peru.

[Aplasia cutis congenita. Report of 2 cases]. / Aplasia cutis congénita. Relato de dos casos.

In 1983, we had two cases of pediatric patients, which were observed in the Regional Hospital "Victor Lazarte Echegaray" of the Peruvian Institute of Social Security in Trujillo, these cases correspond to the syndrome of aplasia cutis congenita. In the first case, the defect was localized as a of ulcer in the right inferior member, which was affected from the third part distal of the thigh to the back part of the foot. In the second one, the lesion was in the middle line of the hairy skin, and it had the particularity of being associate to others congenital malformations. These cases are mentioned because of their rarity of presentation at a world level as well as their unknown occurrence in our country. Then we comment the clinic, histological characteristics, associate congenital defects, possible etiopathogenic mechanisms, differential diagnostic and its evolution and treatment.