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Undifferentiated high-grade pleomorphic sarcoma (UHPS): Diagnostic criteria, differential diagnosis, and treatment. An attempt to erasure the misnomer "MFH"

Undifferenzierte "high-grade" pleomorphe Sarkome: diagnostische Kriterien, Differentialdiagnosen und Behandlung

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Zusammenfassung

GRUNDLAGEN: Das "maligne fibröse Histiozytom" ("MFH") wurde über Jahrzehnte als das häufigste Weichteilsarkom des Erwachsenenalters propagiert, obwohl die Histiogenese dieser Tumorentität kontrovers diskutiert wurde. METHODIK: Überblick zu MFH. ERGEBNISSE: Innerhalb der letzten zwei Dekaden zeigten mehrere Studien, dass der Begriff "MFH" für eine Fülle unterschiedlicher niedrig differenzierter/pleomorpher Sarkome verwendet wurde, obwohl eine spezifischere Subklassifizierung und daraus resultierend eine bessere Prognoseabschätzung möglich wäre. SCHLUSSFOLGERUNGEN: Mitbedingt durch die derzeit verfügbaren Untersuchungsmethoden wie Immunhistochemie, Cytogenetik und molekulare Diagnostik, sollte der Begriff undifferenziertes pleomorphes Sarkom ("MFH") nur für eine kleine Gruppe von pleomorphen malignen Weichteiltumoren verwendet werden, in denen man keine spezifische Differenzierungslinie nachweisen kann. Die exakte Klassifizierung der unterschiedlichen niedrig differenzierten/pleomorphen Sarkome könnte zu besseren/spezifischeren Behandlungsmodalitäten und verlängertem Überleben von Betroffenen beitragen.

Summary

BACKGROUND: For many years malignant fibrous histiocytoma ("MFH") was accepted to be the most common soft tissue sarcoma in adults, its histiogenesis, however, remained controversial. METHODS: Review of the current status of "MFH". RESULTS: Within the last two decades several studies demonstrated that "MFH" has been used as a "waste paper basket" for several better classifiable, poorly differentiated soft tissue sarcomas. Therefore, reclassification of these tumors could led to better prognostification. CONCLUSIONS: In the 21st century with the insight of immunohistochemistry as well as improved cytogenetic and molecular diagnostic the term high-grade undifferentiated pleomorphic sarcoma (so-called "MFH") should be restricted to a group of soft tissue malignancies without a specific line of differentiation. Better classification of various high-grade sarcomas may contribute to more specific treatment options and hence lead to improved survival for patients.

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Correspondence to B. Liegl-Atzwanger.

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Liegl-Atzwanger, B., Hofmann, G., Leithner, A. et al. Undifferentiated high-grade pleomorphic sarcoma (UHPS): Diagnostic criteria, differential diagnosis, and treatment. An attempt to erasure the misnomer "MFH". Eur Surg 41, 143–149 (2009). https://doi.org/10.1007/s10353-009-0474-9

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  • DOI: https://doi.org/10.1007/s10353-009-0474-9

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