1997 Volume 11 Issue 4 Pages 530-536
Two cases with mediastinal or hilar lymph node metastasis of unknown origin are presented. The case 1 is a 65-year-old male patient in whom hilar lymph node metastasis was discovered after undergoing splenic tumor resection. The case 2 is a 74-year-old female patient in whom mediastinal lymph node metastasis was discovered during physical examination. Pathologically, the former case had adenocarcinoma and the latter one squamous cell carcinoma in metastatic lymph node. After surgery, both patients underwent systemic examinations to identify the primary lesion, but no primary lesion has been identified yet. In the near future, further examinations will be needed, taking metastasis from non-thoracic tumors into consideration.
