Malignant metastatic perirenal schwannoma.

Only seven cases of malignant renal or perirenal schwannomas have previously been reported in the literature. Herein we report the case of a 74-year-old female with a previous history of malignant subcutaneous schwannoma and breast ductal adenocarcinoma who presented with a renal mass that was preoperatively diagnosed as a metastatic schwannoma. This is the first case of malignant perirenal schwannoma of metastatic origin.

[Review of infectious prophylaxis in splenectomized patients in the island of Menorca].

Background: Splenectomized patients are at higher risk of severe infection.

Patients And Method: This retrospective study was performed to evaluate compliance with guidelines in patients who underwent a splenectomy between 1978 and 2000. Seventy-five patients were identified and their hospital records were reviewed.

Frequency of multiple sclerosis in Menorca, Balearic islands, Spain.

Objective: To establish prevalence and incidence of multiple sclerosis (MS) in Menorca (Balearic Islands, Spain; population: 67,009).

Methods: An extensive epidemiological study was undertaken using all available information sources. Patients were classified according to Poser's criteria.

[Campaign for the detection of minor beta-thalassemia and prevention of major beta-thalassemia in the isle of Menorca. 10-year experience].

Background: The high prevalence of betathalassemia minor and the presence of several cases of thalassemia major in Menorca (Spain) led us, ten years ago, to set up a population based prevention campaign, following the basic schedule of those already taking place in other areas, specially in Italy.

Patients And Methods: The target population was the children in the last year of mandatory school, when they are 13 to 14 years old. The campaign started in the school year 1986-1987 and in the 1995-1996 course we reached the tenth yearly campaign.

[Prevalence of glucose-6-phosphate dehydrogenase deficiency in a student population on the island of Menorca].

Background: The G6PD deficiency is a red cell enzymopathy very frequent in certain Mediterranean countries. In Menorca (Balearic Islands), a relatively high incidence of favism carried us to study the prevalence of this alteration, taking advantage of the "Campaign for detection of heterozygous beta-thalassaemia to prevent the homozygous beta-thalassaemia" that we make annually.

Methods: We studied a total of 1139 school boys between 13-14 years old for three consecutive school years.