Amann, G; Liegl-Atzwanger, B.
The use of frozen sections in the handling of soft tissue tumors
Pathologe. 2012; 33(5):453-458
Doi: 10.1007/s00292-012-1606-8
Web of SciencePubMedFullTextFullText_MUG
Due to the multiplicity of localizations and entities, handling of soft tissue tumors is a very challenging subject requiring intensive interdisciplinary collaboration. With respect to the use of intraoperative frozen sections, the following facts are of special relevance: 1) the usual criteria for malignancy, such as infiltrative growth and high mitotic rate are only restrictedly applicable to soft tissue tumors. 2) Correct diagnosis of the tumor entity often requires not only the use of immunohistochemistry but also the identification of genetic alterations by the polymerase chain reaction and/or fluorescence in situ hybridization. In many centres, 14G core biopsies taken from different tumor areas represent the preferred method for a diagnostic biopsy. Apart from cryocollection additional frozen section investigations are used especially in case of open biopsies for quality control of the submitted material or in cases of excision biopsies to ascertain a highly probable radiological diagnosis. The use of intraoperative frozen sections to clarify the resection margins is generally undisputed but should definitely be restricted to centres specialized and experienced in the handling of soft tissue tumors.
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