HISTOLOGY, MEDIUM SPECIMEN

CONTAINER/ PRESERVATIVE 10% formalin (10% neutral buffered formalin preferred) in appropriate size, leak proof container. Immerse specimen into formalin within 30 minutes of removal. Ensure specimen is immersed in fixative & not stuck on the side/ lid of the container. For guidance on how to prepare 10% neutral buffered formalin, see this video: https://www.youtube.com/watch?v=Vr2y4-fAOs4 SAMPLE TYPE: A variety of specimens are categorized as ""medium"" based on hybrid criteria (size/ complexity/ cost of processing/ pathologist time) e.g. adrenal resection, bile duct resection, breast biopsy (not mastectomy), carotid body, kidney biopsy (not nephrectomy), brain or meningeal biopsy, mediastinal mass, muscle biopsy, ovarian mass, parathyroid gland(s), placenta, salivary gland, skin resection of malignant melanoma, small bowel diverticuli, soft tissue lipoma, testis, thymus, thyroid. Also tongue or tonsil with neoplasm (local/ with nodes) etc. CONTAINER/ PRESERVATIVE 10% formalin (10% neutral buffered formalin preferred) in appropriate size, leak proof container. Immerse specimen into formalin within 30 minutes of removal. Ensure specimen is immersed in fixative & not stuck on the side/ lid of the container. SAMPLE VOLUME: Volume of formalin to tissue of ≥10:1