Abstract
It is well known that cytology and histology of the cervical lymph nodes are important in diagno-sis of head and neck diseases. Cervical lymph nodes containing metastatic cancer may also suggest the site of the primary cancer. However, cervical lymph nodes occupied by multiple diseases are observed in some case, for example, tuberculosis-lymphoma, lymphoma-cancer and double cancer.
This report presents two cases of metastases of double cancer in the same cervical lymph node. Existence of primary cancers of thyroid and hypophanynx was certified with microscopy in case 1. There were metastases of papillary adenocarcinoma in one of the right superior deep jugular lymph nodes, one of the right middle deep jugular lymph nodes and two of the right inferior deep jugular lymph nodes. Coexistence of adenocarcinoma and squamous cell carcinoma was observed in one of the paratracheal lymph nodes.
In case 2, there were two isolated cancers in the cervical esophagus and thyroid. Papillary adenocarcinoma was observed in three of the left inferior deep jugular lymph nodes and two of the left paratracheal lymph nodes. Metastases of squamous cell carcinoma were seen in a right superior deep jugular lymph node, middle deep jugular lymph node and the left paratracheal lymph node. Coexistence of adenocarcinoma and squamous cell carcinoma was observed in one of the left middle deep jugular lymph node.
