GRP and neoplasm: Tumor markers were evaluated, and all results were within the normal range: SCC 1.830 ng/mL (normal range: <2.5 ng/mL), Pro-GRP 50.40 pg/mL (normal range: <74.4 pg/mL), CEA 3.180 ng/mL (normal range: <5.5 ng/mL), CYFRA21-1 2.150 ng/mL (normal range: <3.3 ng/mL), and NSE 8.530 ng/mL (normal range: 0–15 ng/mL).