Mesenchymal chondrosarcoma in children and young adults: A single institution retrospective review

Michael W. Bishop*, Jessica M. Somerville, Armita Bahrami, Sue C. Kaste, Rodrigo B. Interiano, Jianrong Wu, Shenghua Mao, Frederick A. Boop, Regan F. Williams, Alberto S. Pappo, Sandeep Samant

*Corresponding author for this work

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

Background. Mesenchymal chondrosarcoma is an aggressive, uncommon histologic entity arising in bone and soft tissues. We reviewed our institutional experience with this rare diagnosis. Methods. We conducted a retrospective chart review on patients with mesenchymal chondrosarcoma over a 24-year period. Clinicopathologic and radiographic features were reviewed. Results. Twelve patients were identified. Nine were females; median age was 14.5 years (1.2-19.7 years). The most common site was the head/neck (7/12). Disease was localized in 11/12 patients (one with lung nodules). Six with available tissue demonstrated NCOA2 rearrangement by FISH. Six underwent upfront surgical resection, and six received neoadjuvant therapy (2 chemotherapy alone and 4 chemotherapy and radiation). All patients received adjuvant chemotherapy (most commonly ifosfamide/doxorubicin) and/or radiation (median dose 59.4 Gy). At a median follow-up of 4.8 years, 5-year disease-free survival and overall survival were 68.2% (95% CI 39.8%, 96.6%) and 88.9% (95% CI 66.9%, 100%). Two patients had distant recurrences at 15 and 42 months, respectively. Conclusion. Aggressive surgical resection of mesenchymal chondrosarcoma with chemoradiotherapy yields excellent local control and may reduce likelihood of late recurrence. Characterization of downstream targets of the HEY1-NCOA2 fusion protein, xenograft models, and drug screening are needed to identify novel therapeutic strategies.

Original languageEnglish (US)
Article number608279
JournalSarcoma
Volume2015
DOIs
StatePublished - 2015

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging

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    Bishop, M. W., Somerville, J. M., Bahrami, A., Kaste, S. C., Interiano, R. B., Wu, J., Mao, S., Boop, F. A., Williams, R. F., Pappo, A. S., & Samant, S. (2015). Mesenchymal chondrosarcoma in children and young adults: A single institution retrospective review. Sarcoma, 2015, [608279]. https://doi.org/10.1155/2015/608279