RESUMO
We have described a patient with intestinal obstruction caused by schistosomiasis but closely resembling colon carcinoma. The cause, demography, pathologic characteristics, and clinical management of the disease caused by Schistosoma mansoni are reviewed.
Assuntos
Doenças do Colo/etiologia , Enteropatias Parasitárias/complicações , Obstrução Intestinal/etiologia , Esquistossomose/complicações , Colo/patologia , Doenças do Colo/cirurgia , Neoplasias do Colo/diagnóstico , Diagnóstico Diferencial , Humanos , Enteropatias Parasitárias/diagnóstico , Obstrução Intestinal/cirurgia , Masculino , Pessoa de Meia-Idade , Schistosoma mansoni , Esquistossomose/diagnósticoRESUMO
Histologic changes in canine autogenous femoral veins were studied after interposition into the femoral artery. After a 50 per cent reduction of distal blood flow, marked fibrosis of the intima, causing narrowing of the intima and focal destruction of the internal elastic membrane and media, were found in the vein graft and the adjacent arterial segment. These changes are probably due to abnormal intraluminal pressure of femoral artery and interposed vein graft following constriction.
Assuntos
Veia Femoral/transplante , Sobrevivência de Enxerto , Perna (Membro)/irrigação sanguínea , Animais , Cães , Artéria Femoral/patologia , Artéria Femoral/cirurgia , Veia Femoral/patologia , Fluxo Sanguíneo Regional , Transplante AutólogoAssuntos
Olho , Melanócitos/citologia , Músculos/citologia , Adulto , Pré-Escolar , Feminino , Feto , Idade Gestacional , Humanos , Masculino , Músculos/embriologia , GravidezRESUMO
Melanocytes were observed within the dental lamina or tooth bud in three of eleven Caucasian and in all six Negro fetuses, 12 to 18 weeks of gestation, studied. The presence of these cells in the dental primordium points to a contribution by the neural crest to the formation of the tooth in mammals. The occurrence of melanocytes in the dental anlage may also explain the histogenesis of such pigmented lesions as the melanotic "progonoma," calcigying odontogenic cyst, and the pigmented odontogenic tumor of Richardson.
