MKI67 and neoplasm: The Ki-67 PI in NH nBCLs, as well as in other neoplasms, can be assessed in different ways, mainly by manual counting, which involves determining the exact number of cells expressing Ki-67 in a specified area, but also by eyeballing, which is a semi-quantitative method that provides a rough estimation based on visual assessment alone, without using precise measuring [32,33].