Fig. 3From: Diagnosis of cervical plexus tumours by high-frequency ultrasonographyIntraoperative view and pathology of schwannoma. A Intraoperative image shows the schwannoma in the C4 CP. The blue arrow indicates the neural lesion. B HE (× 400) staining confirmed schwannoma. C, D NF and S-100 (× 400) staining demonstrating nuclear and cytoplasmic immunoreactivityBack to article page