Histology Tech, Histology Technician, Histology Technologist, Histotech, Histotechnician, Histotechnologist, HT, HTL, Histologist, Histology, Grossing, Grossing Tech, Grossing Technician. The HT's primary responsibilities include the preparation of slides of body samplings to provide information for the diagnosis and treatment of patients and to assist the pathologist as required during grossing and/or autopsies.