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Table 1 Quick search checklist

From: Easily detected signs of perineural tumour spread in head and neck cancer

Fat pad or muscle signs Cranial nerve affected Imaging plane(s) best seen on
Fat pad anterior to the superior orbital rim V1 Axial and sagittal
Fat superior to the levator palpebrae muscle V1 Coronal and sagittal
Preantral and postantral fat pads V2 Axial
Fat in pterygopalatine fossa V2 Axial and coronal
Fat pad anterior to the mental foramen V3 Axial
Mandibular bone marrow fat (in older adults ONLY, after red bone marrow has converted to fatty bone marrow) V3 Axial and coronal
Fat pad at mandibular foramen V3 Axial and coronal
Muscle of mastication V3 Axial and coronal
Fat pad at stylomastoid foramen VII Axial