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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.

Archives De Pediatrie : Organe Officiel De La Societe Francaise De Pediatrie

|April 22, 2015

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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.

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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.