Specimen Submission Guidelines for Formalin Fixed Paraffin Embedded (FFPE) Tissue
Note: Specimen submissions vary per protocol. Please follow instructions accordingly.
- Standard collection of Paraffin Embedded Tissue Block.
- Place the fresh tissue in formalin. Do Not Exceed 24 hours fixation time.
- Fixed tissue must be paraffin embedded within 24 hours.
- Cut one H & E (Hematoxylin and Eosin) stained section from the representative paraffin embedded tissue
block.
- Standard collection of Slides.
- Slides may be submitted if the institution cannot release a pathology paraffin embedded block.
- Cut unstained sections from the representative paraffin embedded tissue block.
- Standard submission of unstained slides should be cut at 5-8 mcM thickness on positive charged slides.
- Cut one H & E (Hematoxylin and Eosin) stained section from the representative paraffin embedded tissue
block.
- Slides may be processed according to local pathology guidelines.
- Charged slides will be used for tissue processing unless otherwise noted in treatment protocol.
- Standard Instructions for Shipping Paraffin Embedded Tissues and Slides:
- Include in shipment:
- One representative paraffin embedded block.
- One standard H&E (Hematoxylin and Eosin) stained slide from a representative paraffin embedded
block, if paraffin embedded block not available.
- A pathology report (indicating the morphological diagnosis).
- A copy of the packing/shipping list produced by the SWOG Online Specimen Tracking System.
- Ship paraffin embedded tissue according to the shipping guidelines for ambient specimens in the General
Specimen Submission Instructions above.
NOTE: Paraffin tissue blocks will NOT be returned to the submitting institution unless it is required for patient care. If the block is needed for patient care, a written request must be submitted to the bank with a rationale for the return. If a site will have an issue with this requirement, the option to submit slides in place of the block should be considered.