Cordoma sacrococcígeo en un paciente de mediana edad / Sacrococcigeal chordoma in a middle age patient

Se presenta el caso clínico de un hombre de 48 años de edad, quien fuera ingresado en el Hospital Clinicoquirúrgico Docente "Dr. Joaquín Castillo Duany" de Santiago de Cuba en el 2007, por presentar dificultades para defecar. Según valoración clínico-radiológica, se diagnosticó un cordoma sacrococcígeo y fue egresado debido al estadio del tumor, con indicación de seguimiento en consulta externa. En el mes de julio de ese mismo año se le hospitalizó en el Instituto Nacional de Oncología y Radiología, donde fue intervenido quirúrgicamente. Un año más tarde fue ingresado en el Hospital General Docente "Dr. Juan Bruno Zayas Alfonso", con signos de recidiva tumoral de gran extensión. Falleció 6 meses después.

The case report of a 48 year-old man who was admitted in "Dr. Joaquín Castillo Duany" Teaching Clinical Surgical Hospital from Santiago de Cuba in the 2007 is presented, due to difficulties for defecating. According to a clinical-radiological evaluation, a sacrococcigeal chordoma was diagnosed and he was discharged due to the tumor stage, with the indication of follow up through out patient department. In the month of July of that same year, he was hospitalized in the National Institute of Oncology and Radiology, where he was surgically treated. A year later, he was admitted in "Dr. Juan Bruno Zayas Alfonso" Teaching General Hospital, with signs of tumor relapse of great extension. He died 6 months later.

Expression and clinical significance of urokinase type plasminogen activator in giant cell tumor of bone / 肿瘤研究与临床

Objective To investigate the relationship of uPA and uPA R protein expression in bone giant cell tumors(GCT)with their pathological grades and relapse. Methods By using Avidin biotin complex(ABC) immunohistochemistry method, monoclonal antibodies against uPA and uPA R proteins were used to measure their expression in 23 cases of GCT (including 8 cases of pathological grade Ⅰ, 10 cases of pathological grade Ⅱ and 5 cases of pathological grade Ⅲ accord to Jaffe classification). Results According to the level of these immunoreaction, over expression of uPA and uPA R were detected in 10 and 8 patients (positive rate 43.5 % and 34.8 %). In cases with relapse or not, the positive expression rate of uPA and uPA R was 66.7 %, 28.6 %, 66.7 %, 14.3 % respectively, abnormally high expression of both uPA and uPA R proteins was found in 6 cases(66.7 %). A significant correlation existed between the uPA R expression or co over expression of uPA and uPA R proteins in GCT and its relapse (P