Lhermitte sign during yawning associated with congenital partial aplasia of the posterior arch of the atlas.
We describe the case of a 26-year-old man who presented with symptoms compatible with Lhermitte sign that occurred during yawning. It was associated with congenital partial aplasia of the posterior arch of the atlas. Cervical multisection-detector CT myelography during yawning showed compression of the upper cervical cord due to the inward mobility of the isolated posterior tubercle. The symptoms completely disappeared following removal of the isolated posterior tubercle.
Department of Neurosurgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
T
T
Sagiuchi
S
S
Tachibana
K
K
Sato
S
S
Shimizu
I
I
Kobayashi
H
H
Oka
K
K
Fujii
S
S
Kan
D000328:Adult; D001270:Cervical Atlas / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery; D002574:Cervical Vertebrae / Q000473:pathology / Q000601:surgery; D005260:Female; D005625:Frontal Lobe / Q000293:injuries*; D016489:Head Injuries, Closed / Q000175:diagnosis*; D019416:Head Movements / Q000502:physiology; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008279:Magnetic Resonance Imaging; D009192:Myelography; D013117:Spinal Cord Compression / Q000151:congenital* / Q000175:diagnosis / Q000601:surgery; D036542:Tomography, Spiral Computed; D015000:Yawning / Q000502:physiology*