Introduction
BioFix HD is a fixative manufactured according to Hartmann/Davidson protocol. It contains acetic acid, alcohol and formalin, and is used for fixating and preserving tumor tissues, eyes, bone marrow, breast tissues, testicles and gynecological samples. When processing colon and breast tissue samples, the fixative enables better visualization of lymph nodes that turn white during exposition to BioFix HD. It also enables visualization of fine nucleus details and minimizes formalin pigment.