[Prevalence and seasonal variation of Pediculosis capitis in children and the young population of the health region, Buenos Aires, Argentina].

The prevalence of the parasitic disease Pediculosis capitis was studied over a period of one year from 1-8-1992 to 31-7-1993, in Sanitary Region XI of the Buenos Aires province, Argentina which is composed of 15 districts located on the ENE, and in other areas under the influence of the Hospital Interzonal de Agudos, Especialidad Pediatría "Sup. Sor María Ludovica" de Plata, center of this Sanitary Region. A total number of 552 individuals of from medium to medium low social level of the child population of from 0 to 16 years of age were sampled at random over 52 consecutive weeks.

[Basal cell nevus syndrome. Presentation of 2 cases. 1 associated with medulloblastoma].

A case of nevoid basal-cell carcinoma syndrome in a four years old girl with preceding familiar history is reported. In her epithelioma father numerous basocellular, milia cysts, mandibular cysts, dentition disorders, brain falx calcifica ted and hiperkeratosis of the sole of the feet were described. Clinically, the girl presented initial migraine and vomits together with macrocephalus, bossing forehead, hypertelorism, physical disorders, retarded maturation, "keel" thorax, genu recurvatum, hallux valgus, hammerfinger, pigmented nevus and hyperkeratosis of the sole of the feet.