GRP and neoplasm: Further assessment of tumor markers revealed the following results: CEA 639.800 ng/mL (normal range: <5.5 ng/mL), NSE 69.290 ng/mL (normal range: 0–15 ng/mL), Pro-GRP 2286.00 pg/mL (normal range: <74.4 pg/mL), CYFRA21-1 14.270 ng/mL (normal range: <3.3 ng/mL), SCC 2.230 ng/mL (normal range: <2.5 ng/mL), CA125 15.090 U/mL (normal range: <35 U/mL), and CA199 6.470 U/mL (normal range: <34 U/mL).