Endometriosis como causa de invaginación intestinal / Endometriosis as cause of intestinal invagination

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Absceso de psoas como primera manifestación de un adenocarcinoma de sigma / Psoas abscess as first manifestation of a sigmoid adenocarcinoma

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Shwannoma maligno mediastínico en paciente sin enfermedad de Von Recklinghausen / Mediastinal malignant Shwannoma in a patient without Von Recklinghausen disease

Los tumores malignos derivados de las células de cubierta de nervios periféricos (Schwannomas malignos) en localización mediastínica son muy infrecuentes sobre todo en pacientes sin enfermedad de Von Recklinghausen, siendo excepcional la presentación con un síndrome febril prolongado.Presentamos un caso de una mujer sin neurofibromatosis, con un Schwannoma maligno en mediastino posterior que se presentó como fiebre de origen desconocido, y se comentan las características radiológicas, histológicas e inmunohistoquímicas (AU)

[Mediastinal malignant schwannoma in a patient without Von Recklinghausen disease]. / Schwannoma maligno mediastínico en paciente sin enfermedad de Von Recklinghausen.

Malignant tumors of peripheral nerve sheath (malignant Schwannoma) arising in mediastinum are rare, principally in patients without Von Recklinghausen's disease been fever exceptional as symptom of presentation. We present a case of a woman without neurofibromatosis with a malignant Schwannoma in posterior mediastinum who present as fever of unknown origin, and we comment radiological, hystological and inmunnochemical features.

[Prevalence of latent toxoplasma infection in HIV infection patients]. / Prevalencia de infección latente frente a toxoplasma en pacientes con infección VIH.

BACKGROUND: To know the prevalence of Toxoplasma gondii latent infection in HIV-1 infected patients and to compare it with the prevalence in a group of parenteral drug users, non-infected by HIV. METHODS: We study 255 HIV-1 patients revised in our hospital in the last 6 years. The control group were 116 drug addicts non-infected by HIV followed in an educational program of deshabituation. We tested IgG anti-toxoplasma by enzymatic inmunoessay (MEIA). An IgG plasma value of 6UI/ML or more was an indicative of toxoplasma previous infection. We used Chi Square and Yatchts correction tests for the statistical analysis, settling down a significance point of 95%. RESULTS: We founded 36.7% positive IgG anti-toxoplasma in the group on HIV-1 infected patients, non drugs addicts, against 30.9% in the group of HIV-1 drug addicts patients. (OR 0.77; 0.35 < OR < 1.66). The control group showed a Toxoplasma seroprevalence of 26.7%, without statistically significant against the drug addicts HIV group (OR = 1.55; 0.93 < OREGON < 2.59). CONCLUSIONS: The seroprevalence of Toxoplasma gondii latent infection in our study was similar to the european results. We didn't found a higher prevalence in HIV-1 patients than in patients non infected by HIV-1.

[Human immunodeficiency virus infection in women]. / Infección por el virus de la inmunodeficiencia humana en mujeres.

From last years eighty's decade the number of women with HIV infection have significantly increased. To know the epidemiological and clinic trades in this group we studied retrospectively 476 HIV infected patients attending in a General Hospital from January 1986 to June 1993. Seventy nine (16.5%) were female and 397 male. The mean female group was 25.8 years, 61.9% were IVDUs and 30.4% heterosexual transmission. This last transmission route was more important between females than males (5%) (p < 0.001) and in 1992 the 55% of women been infected by this way. The mean CD4 count was 643 cel/ml in the female group at the diagnostic time and 21.7% developed antigenaemia without difference with the male group. 59.7% of women were no symptoms at the diagnosis time and 14.3% were AIDS, no differences with men, but more in the female group developed AIDS along following time 39.5% in front of 24.7% in the male group (p < 0.05). Disseminated Tuberculosis (DTB) (29.1%) and Wasting Syndrome (WS) (29.1%) were the more frecuent AIDS defining conditions in the female group. The more frecuent complications were: Oropharynx Candidiasis 39.1%, Esophagus Candidiasis 6.3%, WS 11%, DTB 12.65%, PCP 10.12% and Neoplasias 5.06%. Fourteen women became pregnant during HIV infection, no clinical nor immunological differences were observed in this group with the control. The treatment (66%) and following (46.8%), compliance was better between women than men. The rise of women with HIV infection, the poor development in this group described by some authors, so far gynecological aspect and vertical transmission makes HIV infection in women an major health problem.

[Peritoneal mesothelioma: the importance of ultrastructural study. A report of 2 cases and a review of the Spanish literature]. / Mesotelioma peritoneal: importancia del estudio ultraestructural. Aportación de dos casos y revisión de la literatura española.

Two cases of peritoneal mesothelioma (PM), with ultrastructural study, of females who lived in a rural area without asbestos exposition history are described and the Spanish literature reviewed. We highlight the association with severe autoimmune hemolytic anemia, due to the presence of cold agglutinins, in one patient without relationship to drugs or concomitant diseases. We focus on the need for thorough and multiple biopsies through laparoscopy to avoid false negative. We believe that there are no totally specific morphological data on mesothelioma, which means that the initial study is based on optical microscopy performed with hematoxylin-eosin and PAS-diastase stain using the electronic microscopy to confirm the diagnosis.