RESUMEN
Angiosarcomas are relatively rare and account for only 1% of all sarcomas. They arise from endothelial cells of blood or lymph vessels. They are usually highly aggressive and long term outcome is poor with an overall 5-year survival rate of 10-20%. We report the case of a 80-year old man with an angiosarcoma arising in a non-functioning arteriovenous fistula. Angiosarcomas arising in an arteriovenous fistula are very rare and only eleven cases were found in the literature. In nine cases (82%) chronic immunosuppression, taken for renal transplant, was one of the causing factors. Our patient however did not receive a kidney transplant and was not on immunosuppressive therapy. Clinicians should be aware that an angiosarcoma can arise in an arteriovenous fistula even without chronic immunosuppression.
Asunto(s)
Hemangiosarcoma/diagnóstico , Neoplasias Vasculares/diagnóstico , Anciano de 80 o más Años , Derivación Arteriovenosa Quirúrgica/efectos adversos , Biopsia , Diagnóstico Diferencial , Resultado Fatal , Hemangiosarcoma/etiología , Humanos , Fallo Renal Crónico , Trasplante de Riñón , Masculino , Neoplasias Vasculares/etiologíaRESUMEN
We describe the case of a 70-year-old woman who presented with a pulsating mass in the left supraclavicular region during a haemodialysis session. The frequency of the pulsations, parallel to that of the dialysis-related blood flow cycle, without blood loss at the exit site, indicated that this observation could potentially be attributed to a rupture of the silastic material in the subcutaneous track of the catheter. Our hypothesis was confirmed after removal of the catheter.
