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Ewing's sarcoma with an uncommon clinical course: A case report
Rui Niimi1, Akihiko Matsumine, Tomiki Nakamura
1Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu City, Mie 514-8507;
Oncology Letters
|August 16, 2013
Summary
A rare case of Ewing
Area of Science:
- Orthopedic Oncology
- Medical Genetics
Background:
- Ewing's sarcoma family of tumors (ESFT) typically presents in younger individuals.
- ESFT often requires aggressive multimodal treatment.
- Delayed recurrence in ESFT can present diagnostic challenges.
Purpose of the Study:
- To report an unusual case of ESFT with a long disease-free interval.
- To highlight diagnostic considerations for recurrent ESFT.
- To discuss potential rare subtypes of ESFT.
Main Methods:
- Case report of a patient with initial ESFT diagnosis and subsequent recurrence.
- Review of diagnostic imaging (radiographs, MRI).
- Biopsy and molecular investigation for fusion genes.
Main Results:
- Initial ESFT treatment at age 20 led to 18 years without recurrence.
- Recurrence diagnosed at age 38, presenting as a proximal femur mass.
- Molecular analysis did not detect characteristic ESFT fusion genes.
Conclusions:
- This case suggests a potential rare subtype of ESFT with a non-aggressive course.
- The absence of typical fusion genes in recurrence warrants further investigation.
- Long-term surveillance is crucial for patients with ESFT, even after initial apparent success.
