MKI67 and lymphoma: In the overall cohort, HALs exhibited higher Ki67 expression, with a median AOD of 0.92 (IQR, 0.73–1.205) versus 0.82 (IQR, 0.65–0.93) in HIV-negative lymphomas, and a greater median positive area percentage (85.87% vs. 61.36%; both p < 0.001; Table 1).