The zygomatic air cell defect (ZACD) on panoramic radiographs.
D000328:Adult; D000388:Air; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D011862:Radiography, Panoramic; D015050:Zygoma / Q000000981:diagnostic imaging* / Q000473:pathology