Empty glenoid fossa sign.
Routine CT studies of suspected closed head injury encompass the calvaria to the cranial base. It is at the cranial base that the glenoid fossa appears. An "empty glenoid fossa" sign is when there is no condyle associated within the fossa. This is suggestive of a condylar neck fracture.
Penna
Kevin J
KJ
Department of Oral & Maxillofacial Surgery at Nassau University Medical Center, East Meadow, NY, USA.
Mirra
Richard M
RM
Cusumano
Francis J
FJ
D016489:Head Injuries, Closed / Q000000981:diagnostic imaging; D006801:Humans; D008335:Mandibular Condyle / Q000293:injuries*; D008337:Mandibular Fractures / Q000000981:diagnostic imaging*; D011861:Radiography, Dental; D013701:Temporal Bone / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed