[Idiopathic pulmonary artery aneurysm: report of a case and review of the literature]. / Aneurisma idiopático de la arteria pulmonar. Presentación de un caso y revisión de la literatura.

Woman of 63 years old with essential arterial hypertensión, essential trembling and chronic venous insufficiency of inferior members; she came to the Internal Medicine outpatients department because of her chronic venous insufficiency, objectifying in the physical examination a systolic heart murmur II/VI in the left sternal border and many signs of chronic venous insufficiency in the inferior members. In the chest radiograph was found as an accidental finding, a properly delimited vascular image in the left upper mediastino, for this reason there were later realized diverse complementary examinations gradually more aggressive, that included a pulmonary angiography which revealed the presence of an aneurysmatic dilatation in the common and left pulmonary arteries. With these findings, the patient was undergoing a surgical operation, in which was realized a partial resection and folder to the common and left pulmonary arteries to reduce diameter to 2-3 centimetres, with a post-operative period without complications and staying without symptoms after the surgery.

[Primary Ki-1 positive anaplastic large cell non-Hodgkin's lymphoma of the lung. A case study and review of the literature]. / Linfoma no Hodgkin pulmonar primario anaplásico de células grandes Ki-1 positivo. Estudio de un caso y revisión de la literatura.

Ki-l positive anaplastic large cell non-Hodgkin's lymphomas are a recently recognized entity, unusual and characterized by the expression of CD30 antigen. The most usual clinical feature is peripheral lymphadenopathy with mediastinal sparing and extranodal disease which occurs in approximately half of the cases, with the skin as the most common site; lung, bone marrow and central nervous system involvement are uncommon. Therefore primary pulmonary Ki-l positive anaplastic large cell non-Hodgkin's lymphomas are an uncommon clinical entity. Their classification and clinical behaviour look like high grade malignancy lymphomas, that in the most cases are presented in advanced stages disease to the diagnostic. They are presented with higher incidence in young people, where prognostic is more favourable. Clinical, morphologic and inmunophenotypic features of this lymphoma type are reported.

Incidence of type 1 (insulin-dependent) diabetes mellitus in subjects 0-14 years of age in the Comunidad of Madrid, Spain.

A retrospective, population-based registry was established in the Comunidad of Madrid, Spain (total population: 4,780,572; under age 15: 1,105,243) to investigate the epidemiology of Type 1 (insulin-dependent) diabetes mellitus. Included were all cases diagnosed with diabetes between 1985 and 1988, with age onset less than 15 years, and using insulin at discharge from hospital. Using the capture-recapture method employing hospital records as the primary source and membership files of the Spanish Diabetic Association as the secondary source, the ascertainment was 90%. The overall annual incidence was estimated to be 11.3/100,000 (Poison 95% confidence interval: 10.3-12.4). There was no temporal increase in incidence, nor was there a significant sex difference in incidence rates, either overall or by year. The seasonal onset pattern showed the highest incidence in winter (December-February) and lowest in summer (June-August) (r = 7.36, p less than 0.05). The age-adjusted (world standard) incidence of 10.9/100,000 was inconsistent with the hypothesis of a north-south gradient in diabetes risk.