Frozen section procedure
（重定向自Cryosection）
![Tissue embedded within OCT, mounted on a chuck in a cryostat and ready for section production](/Images/godic/202501/07/Tissue_for_frozen_section_in_cryostat1656.JPG")
The frozen section procedure is a pathological laboratory procedure to perform rapid microscopic analysis of a specimen. It is used most often in oncological surgery. The technical name for this procedure is cryosection.
The quality of the slides produced by frozen section is of lower quality than formalin fixed paraffin embedded tissue processing. While diagnosis can be rendered in many cases, fixed tissue processing is preferred in many conditions for more accurate diagnosis.