Case Reports in Dentistry / 2016 / Article / Fig 1

Case Report

Mandibular Canal Widening and Bell’s Palsy: Sequelae of Perineural Invasion in Oral Cancer

Figure 1

(a) Extraoral draining sinus. (b) Bells sign positive with absence of wrinkles on the affected side of the forehead. (c) Erosive ulcer extending from the corner of the mouth to retromolar trigone. (d) Diffuse widening of the mandibular canal extending from the mandibular foramen to the mental foramen. (e) Axial CT scan showing widening of the mandibular canal. (f) 10x view showing extensive PNI with the presence of tumour cells in the form of islands approximating the neural tissue. (g) 40x view showing intraneural tissue intermixed with tumour islands.

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