RESUMEN
This report describes a renal tumor with an unusual histology in a 45-year-old woman. The tumor was white in color, different from usual renal cell carcinoma, and mainly consisted of variously shaped tubules formed by flat or cuboid cells within marked edematous stroma. Elaborated branching or tubules arranged in a papillary pattern with focal spindle-shaped cell proliferation were characteristic features. Immunohistochemical staining expressed diffusely positive for vimentin and S-100 protein, partially positive for cytokeratin and epithelial membrane antigen and negative for Leu-M1, Leu-7, CD34 and markers for muscle cells. Ultrastructural studies of the tumor cells showed adenocarcinoma-like characteristics. According to these histological, immunohistochemical and electron microscopy findings, it is suggested that this tumor be designated as unclassified renal cell carcinoma with histology mimicking lower-nephron nephrogenesis.
Asunto(s)
Carcinoma de Células Renales/patología , Neoplasias Renales/patología , Biomarcadores de Tumor/metabolismo , Carcinoma de Células Renales/metabolismo , Carcinoma de Células Renales/ultraestructura , Diagnóstico Diferencial , Femenino , Humanos , Inmunohistoquímica , Neoplasias Renales/metabolismo , Neoplasias Renales/ultraestructura , Microscopía Electrónica , Persona de Mediana EdadRESUMEN
A total of 25 patients with nonbacterial prostatitis and prostatodynia which were resistant to conventional drug therapy underwent 5 minutes course of transrectal ultrasonic therapy in association with application of 1% hydrocortisone acetate cream to the anterior rectal wall for consecutive 8 days. The efficacy of the treatment was evaluated only by comparison of symptom scores for subjective symptoms obtained before and after treatment. Excellent results, which were defined as more than 70% reduction of symptom scores after treatment, were obtained in 5 (27.8%) among 18 evaluable cases in which symptom scores before treatment were more than 4, good (40-69% reduction of scores) in 4 (22.2%), fair (10-39% reduction of scores) in 4 (22.2%) and poor (less than 10% reduction of scores) in 5 (27.8%). Because of good clinical efficacy and the absence of complication, transrectal ultrasonic therapy combined with hydrocortisone acetate cream application was thought to be useful for the treatment of nonbacterial prostatitis and prostatodynia cases which responded poorly to the conventional therapy.