Extraosseous Ewing sarcoma of the common fibular nerve.
Pract NeurolSep 20, 2026 (epub)
Zeinab Awada, Faina Ablyazova, John Boockvar et al.
✦ AI-curated · Sources linked
Case in brief
A 64-year-old woman presented with progressive weakness of the left foot, leading to the diagnosis of an intraneural extraosseous Ewing sarcoma of the common fibular nerve. The case highlights the diagnostic complexities associated with this rare malignancy, necessitating a multidisciplinary approach for effective management.
Diagnostic / clinical pearl
Clinicians should consider Ewing sarcoma in the differential diagnosis of peripheral nerve tumors, especially in atypical presentations such as intraneural involvement.
Why it matters
This case underscores the importance of a multidisciplinary approach in managing rare malignancies that present with neurological symptoms.