title: Novel uses of immunohistochemistry in the diagnosis and classification of soft tissue tumors.
abstract: Immunohistochemistry plays a key role in the diagnosis of soft tissue tumors. Until recently, however, the primary purpose of immunohistochemistry in this context was simply to attempt to demonstrate a line of differentiation. Unfortunately, most traditional markers (predominantly directed against cytoplasmic determinants) show relatively limited specificity. Over the last decade or so, much more specific immunohistochemical markers for soft tissue tumors have been developed. This review will provide an update of some of the most useful new diagnostic markers, which are significantly changing clinical practice for surgical pathologists, separated into three general categories: (1) lineage-restricted transcription factors, (2) protein correlates of molecular alterations, and (3) diagnostic markers identified by gene expression profiling.
authors.affiliation: Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
authors.forename: Jason L
authors.initials: JL
authors.lastname: Hornick
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis* / Q000235:genetics; D002454:Cell Differentiation; D019070:Cell Lineage; D003937:Diagnosis, Differential; D020869:Gene Expression Profiling; D020022:Genetic Predisposition to Disease; D006801:Humans; D007150:Immunohistochemistry; D010641:Phenotype; D011237:Predictive Value of Tests; D011379:Prognosis; D012983:Soft Tissue Neoplasms / Q000737:chemistry* / Q000145:classification* / Q000235:genetics / Q000473:pathology; D009626:Terminology as Topic; D014157:Transcription Factors / Q000032:analysis
chemical_list: D014408:Biomarkers, Tumor; D014157:Transcription Factors