2007 Volume 21 Issue 5 Pages 673-676
A 71-year-old woman was admitted bec-ause of a high titer CEA and mediastin-al lymph node swelling. She underwent acomplete check, but no primary lesion w-as found. As CT and FDG-PET showed on-ly one swollen mediastinal lymph node (#6), we carried out a thoracotomy and pe-rformed a biopsy. According to the resul-ts of a pathological examination, anapla-stic carcinoma was identified and other lymph nodes that were resected during the operation did not show any maligna-ncy. We diagnosed the case as mediastin-al lymph node carcinoma without an ap-parent primary lesion. We performed co-ncurrent chemotherapy and radiation th-erapy (50Gy) for the mediastinum after the operation. She is currently alive wit-hout recurrence or appearance of the pr-imary site 21 months after resection.
