Fig. 3From: Bell’s palsy misdiagnosis: characteristics of occult tumors causing facial paralysisComparison between initial and follow-up axial T1 Post- gadolinium MR imaging in patient 4 a asymmetric enhancement at the mastoid segment of right facial nerve (arrow) b MRI 3 weeks later with full coverage of the parotid gland shows obvious enhancement of the right parotid gland (dashed arrow)Back to article page