These have different charges depending on the number of specimens. 1. Gastrointestinal biopsies are best orientated so that the plane of sectioning is perpendicular to the mucosal surface. Whenever possible, endoscopic biopsies of the gastrointestinal tract should be mounted on to a piece of filter paper, numbered and put immediately into fixative. 2. The anatomical sites of the biopsies should be marked on a diagram on the request form, and the specimens similarly numbered on the strip of filter paper. 3. Preferably, biopsies from different anatomical sites e.g. stomach, ascending colon, transverse colon etc, should be placed in separate containers. Note: Make sure that the ink does not dissolve in the formalin fixative.
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