Extraskeletal Ewing sarcoma of the parapharyngeal space with a unique translocation, t(19;22) (q13.4;q12.2)

Gloria Ramos-Rivera, Esther Adler, K.h. Ramesh, Bradley A. Schiff, Mark J. Suhrland, Samer N. Khader

Research output: Contribution to journalArticle

Abstract

Extraskeletal Ewing sarcomas of the parapharyngeal space are extremely rare. It has been documented that Ewing sarcomas are morphologically and molecularly indistinguishable regardless of the tissue of origin. Around 85% of Ewing sarcomas are associated with translocation t(11;22)(q24.1;12.2) generating the EWSR1-FLI1 fusion oncoprotein. We report a case of an extraskeletal Ewing sarcoma arising in the parapharyngeal space with a unique translocation: t(19; 22) (q13.4;q12.2). To our knowledge this is the first case of an extraskeletal Ewing sarcoma exhibiting this translocation.

Original languageEnglish (US)
JournalHuman Pathology: Case Reports
DOIs
StateAccepted/In press - May 4 2015

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Ewing's Sarcoma
Oncogene Proteins

Keywords

  • Ewing sarcoma family of tumors
  • Extraskeletal Ewing sarcoma
  • Parapharyngeal space
  • T(19;22)(q13.4;q12.2)

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

Cite this

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title = "Extraskeletal Ewing sarcoma of the parapharyngeal space with a unique translocation, t(19;22) (q13.4;q12.2)",
abstract = "Extraskeletal Ewing sarcomas of the parapharyngeal space are extremely rare. It has been documented that Ewing sarcomas are morphologically and molecularly indistinguishable regardless of the tissue of origin. Around 85{\%} of Ewing sarcomas are associated with translocation t(11;22)(q24.1;12.2) generating the EWSR1-FLI1 fusion oncoprotein. We report a case of an extraskeletal Ewing sarcoma arising in the parapharyngeal space with a unique translocation: t(19; 22) (q13.4;q12.2). To our knowledge this is the first case of an extraskeletal Ewing sarcoma exhibiting this translocation.",
keywords = "Ewing sarcoma family of tumors, Extraskeletal Ewing sarcoma, Parapharyngeal space, T(19;22)(q13.4;q12.2)",
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AU - Ramos-Rivera, Gloria

AU - Adler, Esther

AU - Ramesh, K.h.

AU - Schiff, Bradley A.

AU - Suhrland, Mark J.

AU - Khader, Samer N.

PY - 2015/5/4

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N2 - Extraskeletal Ewing sarcomas of the parapharyngeal space are extremely rare. It has been documented that Ewing sarcomas are morphologically and molecularly indistinguishable regardless of the tissue of origin. Around 85% of Ewing sarcomas are associated with translocation t(11;22)(q24.1;12.2) generating the EWSR1-FLI1 fusion oncoprotein. We report a case of an extraskeletal Ewing sarcoma arising in the parapharyngeal space with a unique translocation: t(19; 22) (q13.4;q12.2). To our knowledge this is the first case of an extraskeletal Ewing sarcoma exhibiting this translocation.

AB - Extraskeletal Ewing sarcomas of the parapharyngeal space are extremely rare. It has been documented that Ewing sarcomas are morphologically and molecularly indistinguishable regardless of the tissue of origin. Around 85% of Ewing sarcomas are associated with translocation t(11;22)(q24.1;12.2) generating the EWSR1-FLI1 fusion oncoprotein. We report a case of an extraskeletal Ewing sarcoma arising in the parapharyngeal space with a unique translocation: t(19; 22) (q13.4;q12.2). To our knowledge this is the first case of an extraskeletal Ewing sarcoma exhibiting this translocation.

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