RESUMO
En los dos últimos decenios han sido motivo de numerosas revisiones los tumores de células transicionales en personas menores de 20 años de edad. Se presenta un estudio retrospectivo de seis pacientes con tumores vesicales de urotelio que, en el momento de iniciarse la sintomatología, tuvieran edad de 20 años o menor. En todos los casos el primer signo fue la hematuria, y el diagnóstico se confirmó entre dos y 60 meses después. El tratamiento de elección fue la electrorresección transuretral y, en un caso, consistió en cistectomía parcial con reimplantación de los uréteres. Se trata de carcinomas de buen pronóstico, por su baja tendencia invasora que se pone de manifiesto en la revisión bibliográfica y se confirma en esta serie. Es un padecimiento poco frecuente (0.4 por ciento) en este grupo etario; sin embargo, se debe tener en cuenta en el diagnóstico diferencial de la hematuria en el paciente joven. Se proponen la ecografía y la citología urinarias como métodos para el seguimiento de estos tumores.
Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , História Antiga , Carcinoma de Células de Transição , Neoplasias da Bexiga Urinária , Hematúria , Neoplasias Ureterais , Neoplasias da Bexiga Urinária/diagnóstico , Neoplasias da Bexiga Urinária/cirurgiaRESUMO
Cutaneous leishmaniasis in Mexico was first described in 1912. Since then, its existence has been repeatedly confirmed in the forest regions of the peninsula of Yucatan. In order to obtain reliable knowledge about the magnitude of this problem, we questioned and skin-tested a sample of 449 persons randomly selected from men aged 15-45 years. We found a positivity rate of 24 to 90% (mean 43%) in the seven rural health posts studied. Furthermore, 72 patients were examined between January and December 1987 by parasitological investigation (smear, isolation, culture and/or biopsy) and the Montenegro skin test; 56 had acquired the disease in 1987. Based on these data, we found an annual incidence rate of 508 per 100,000 inhabitants. Further long-term studies are indicated to determine the incidence and prevalence rates for this disease in other parts of the country.
Assuntos
Leishmaniose/epidemiologia , Adolescente , Adulto , Humanos , Masculino , México/epidemiologia , Pessoa de Meia-Idade , Testes Cutâneos , Inquéritos e QuestionáriosRESUMO
The authors review a single case history of intestinal polyposis (Peutz-Jeghers syndrome) of a patient followed by them for eleven years. The paper includes a review of the pertinent literature. The present case was diagnosed as a result of the clinical observation of pigmented spots in the oral mucosa and crises of spasmodic abdominal pain accompanied by bowel movements containing mucus and blood. In other members of the family only a younger sister had slightly pigmented spots in the oral mucosa. None had radiologic findings suggestive of the syndrome of Peutz-Jeghers. Recently the patient under study suffered an intestinal intussuception which led to the surgical resection of a segment of small intestine and permitted pathologic confirmation of the diagnosis. Surgical resection of nodules in both breasts resulted in diagnoses of sclerosing adenosis in the left and an epidermoid cyst in the right.