[A case of long-term survival without recurrence from an unknown primary carcinoma after resection of lymph node...

A 76-year-old woman was diagnosed with intraabdominal tumors at a regular medical check-up. The tumors were resected and were identified as number 8a and 3 lymph nodes with adenocarcinoma. No primary was identified despite various studies; the final diagnosis was of adenocarcinoma of unknown primary. No recurrence developed; the patient has survived for 5 years without postoperative chemotherapy. The patient was disease-free 5 years after diagnosis. To the best of our knowledge, this is the first report of long-term survival of number 8a and 3 lymph node metastasis from an unknown primary carcinoma.