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Table 3 Relationship between stage of tumor and pre-operative carcinoembryonic antigen levels

From: Carcinoembryonic antigen levels correlated with advanced disease in medullary thyroid cancer

Stage Pre-op CEA (ng/ml)
Stage I 2.7
Stage II 38.8
Stage III 15.7
Stage IVA 74.7
Stage IVB 128.2
Stage IVC 405.9