CEACAM5 and neoplasm: Clinical monitoring showed improvement in both conditions: by March 2024, her HIV-1 RNA had decreased to 35 copies/mL with CD4 + T cell count increasing to 281 cells/μL, while tumor markers demonstrated significant improvement, with CEA decreasing to 1.26 ng/mL and CA15-3 to 22.40 U/mL by April 2024.