A 64-year-old man presented with a 6-month history of epigastric pain, weight loss, and nausea. Non-tender, firm, fixed, left supraclavicular lymph node measuring 3.0 by 2.5cm was noted. CT of the abdomen showed liver metastasis.

Which carcinoma does the patient have? *This case is from the Docplexus editorial team for educative purpose only. Source: NEJM Stay connected, the answer will be posted in the next 48h!