TY - JOUR T1 - Spontaneous Regression of Colorectal Cancer Metastatic to Retroperitoneal Lymph Nodes JF - Anticancer Research JO - Anticancer Res SP - 465 LP - 468 VL - 29 IS - 2 AU - ARVINDER S. BIR AU - AHMAD A. FORA AU - CHARLES LEVEA AU - MARWAN G. FAKIH Y1 - 2009/02/01 UR - http://ar.iiarjournals.org/content/29/2/465.abstract N2 - Spontaneous remissions have been reported in solid tumors such as melanoma and renal cell cancer. However, spontaneous remissions in colon cancer have not been previously radiographically confirmed. A case of colon cancer metastatic to the retroperitoneal lymph nodes that exhibited a durable spontaneous regression is reported. The exact trigger of this phenomenon has not been elucidated; however, an antitumor immune response is the most likely explanation. The identification and characterization of similar cases would probably result in defining a patient population that can be followed by observation and may result in the development of novel therapeutic strategies. Copyright© 2009 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved ER -