Magnetic resonance imaging staging of nasopharyngeal carcinoma in the head and neck

Figure 7 Coronal post-contrast T1 weighted MRIs of nasopharyngeal carcinoma in three patients illustrating tumor extension in the foramina from the anterior (A) to the posterior (C) skull base. A: The right foramen rotundum and vidian canal (solid long and short arrows, respectively); B: Left foramen ovale (solid arrow); C: Left foramen lacerum (solid arrow). The uninvolved foramina on the contralateral sides are indicated by broken arrows.