Label a Cytolyt container with the patient's last name, first name and registration number (or other second unique patient identifier). Also indicate specific anatomic site. Brush lesion area. Place brush directly into CytoLyt, swirl the brush vigorously in the solution, then snip into the container. Submit with an appropriately completed requisition (one for each anatomic site), including pertinent patient history. Refrigerate specimens that cannot be delivered immediately and deliver as soon as possible. Do not allow specimen to freeze. If CytoLyt is not available, label a slide with patient's last, first name and registration number (or other second unique patient identifier) using a graphite pencil (do not use ink, wax or crayon). Also indicate specific anatomic site. Distribute collected sample evenly on glass slide by gently rolling the brush on the slide and fix each smear IMMEDIATELY with spray fixative. Allow spray-fixed slides to dry completely and place into a slide holder. Submit with an appropriately completed requisition, including pertinent patient history.