Case Report: Colorectal cancer metastasis to a cervical lymph node - an unusual source of a neck lump.

Colorectal cancer (CRC) is the third most common cancer worldwide, and approximately 25% of patients already have metastases at the time of diagnosis. The most common metastatic sites for CRCs are the liver, lung, bone and brain and peritoneum. Cervical lymph node metastases in CRC are rare, particularly in the absence solid organ involvement. Here we present a case of a 73-year-old female patient who, following resection of a poorly differentiated caecal adenocarcinoma, re-presented four years later with a left level IV lymph node which was ultimately found to contain metastatic adenocarcinoma.