This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Stomach & Duodenum, Subject name: Surgery
[{'content': "Troisier's sign is \nSelect and explain. \nA. Metastatic left supraclavicular lymphadenopathy, B. Carpopedal spasm in hypocalcemia, C. Migratory thromboplebitis, D. Any of the above", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. a. (Metastatic left supraclavicular lymphadenopathy) (Ref: Bailey and Love 26,h/pg.l048, 1046, 777)In Ca stomach, lymphatic spread may be extensive, the tumour even appearing in the supraclavicular nodes (Troisier's sign). Unlike malignancies such as breast cancer, nodal involvement does not imply systemic dissemination.Troisier's sign# Metastasis to supraclavicular group of node (e.g. as in Ca stomach)Trousseau's sign# In advanced cancers (e.g. gastric cancer) non-metastatic effects of malignancy are seen, particularly thrombophlebitis (migratory).Trousseau's sign# In hypoparathyroidism (with hypocalcemia) Carpopedal spasm can be induced by occlusion of the arm with a pressure cuff for 3 minutes.", 'role': 'assistant'}]