The missing rectus: a CT observation from blow-out fracture of the orbital floor.
A patient with a blow-out fracture of the right orbital floor presented with impediment of the inferior rectus muscle. Coronal CT disclosed a lateral hinged fragment from the orbital floor and herniation of intrabulbar content into the maxillary sinus. The inferior rectus muscle could not be identified intraorbitally in three sequential 3 mm coronal sections and it was concluded that the muscle was incarcerated, a presumption that was verified at surgery.
Anda
S
S
Department of Radiology, University Hospital of Trondheim, Norway.
Elsås
T
T
Harstad
H K
HK
D000328:Adult; D004172:Diplopia / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D008297:Male; D009801:Oculomotor Muscles / Q000000981:diagnostic imaging* / Q000293:injuries; D009917:Orbital Fractures / Q000150:complications / Q000000981:diagnostic imaging*; D012887:Skull Fractures / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed