THREE-DIMENSIONAL CONFORMAL RADIATION THERAPY FOR PALLIATIVE TREATMENT IN METASTATIC LIVER CANCER : A CASE REPORT
Abstract
A case of metastatic liver cancer from CA colon who failed to systemic therapy was treated with 3D-CRT and periodical irradiation with deep inspiration breath- hold technique. This technique permits the precise delivery of high radiation dose to the target while sparing the most of normal liver tissue. The radiation dose was 66Gy in 20 fraction encompassed the target at the 90 percent isodose line. The tumor was decreased in size and pain was relief. The CEA level was decreased from 1466 to 371 in one month after radiation therapy .The second course of radiation with 30 Gy in 2 weeks was given to the residual tumor. The tumor in the liver was controlled for more than 18 months. The patient could tolerate to the treatment procedure well without any complications inherent to the technique. This technique is an effective and safe treatment for liver metastatic tumor especially in single lesion.
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