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Case report 682. Neuroepithelioma of soft tissues of the knee.

Peripheral neuroepitheliomas should be included in the differential diagnosis of a soft-tissue tumor in the extremities or chest wall, especially in young adolescents. MRI provides useful information as to the extent of the tumor and relationship with adjacent structures, although it may not differentiate neuroepitheliomas from other, more common, soft-tissue sarcomas. Together with clinical and histological findings, MRI can assist in the diagnosis and treatment planning of this tumor.