Introduction

Histopathology derive from the word histo and pathology.
Histo means tissues while pathology indicates disease processes or changes.
Before tissues are processed, they are pre-fixed in chemicals called fixatives. The specimens are sent in fixatives to the laboratory where they are registered and given histology number. This number is the laboratory number used for the processing of the specimen.
Registered samples are transfered to the cut-up room for selection. Once part of the tissues are selected depending on the pathology presented, they are capped in tissue cassettes and transfered to the alcohol bath for processing starting from dehydration.