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[Ewing sarcoma located in the mandible: A case report]
M Hernandez1, D Droz1, L Mansuy2
1Département d'odontologie pédiatrique, CHU de Nancy, 2, rue du Docteur-Heydenreich, 54000 Nancy, France.
Summary
Ewing sarcoma, a rare pediatric bone cancer, can present unusually without pain. This case highlights mandibular swelling as a key symptom in a child, emphasizing the need for vigilance in diagnosis.
Area of Science:
- Pediatric Oncology
- Skeletal Radiology
- Maxillofacial Pathology
Background:
- Ewing sarcoma is the second most frequent primary malignant bone tumor in pediatric populations.
- Typical symptoms include localized pain and a palpable mass, often prompting initial radiographic evaluation.
- Radiographic findings may show poorly defined osteolytic lesions with periosteal reactions, but these are not definitive.
Observation:
- This report details a 7-year-old boy with mandibular Ewing sarcoma.
- The child presented with progressive mandibular swelling but notably lacked pain.
- The unusual presentation and location highlight potential diagnostic challenges.
Findings:
- The case underscores that Ewing sarcoma can manifest without the hallmark symptom of pain.
- An unusual localization, such as the mandible, can complicate early recognition.
- Diagnostic delays may occur if typical symptoms are absent.
Implications:
- This case emphasizes the importance of considering Ewing sarcoma in pediatric patients with unexplained swelling, even in the absence of pain.
- Radiologists and clinicians should be aware of atypical presentations of Ewing sarcoma in unusual locations like the mandible.
- Prompt biopsy remains crucial for definitive diagnosis when suspicion is raised, regardless of initial imaging findings.

