Arthrotomographic sign of a 'double line' as an indicator of disc folding and sideways disc displacement in the temporomandibular joint.
Dual-space, single-contrast arthrotomolgraphy of the TMJ was performed on a 19-year-old woman with a history of pain and clicking. Simultaneous multi-layer arthrotomography with computed radiography was used for the present examination. Anterior disc displacement with reduction was observed in the sagittal plane, together with a double line in the lower joint space. The double line was interpreted as disc folding and sideways disc displacement and was confirmed in the coronal plane.
Honda
E
E
Department of Dental Radiology and Radiation Research, Faculty of Dentistry, Tokyo Medical and Dental University Japan.
Ida
M
M
Sasaki
T
T
Nishizawa
E
E
Kino
K
K
D000328:Adult; D001175:Arthrography / Q000379:methods; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging* / Q000473:pathology*; D019224:Temporomandibular Joint Disc / Q000000981:diagnostic imaging / Q000473:pathology*; D013705:Temporomandibular Joint Disorders / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed