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[Unilateral isthmic lysis in x-ray computed tomography]
A Chevrot1, B Rousselin, F Gires
1Service de Radiologie B, Hôpital Cochin, Paris.
Journal De Radiologie
|December 1, 1988
Abstract:
Condensing pediculolaminar hypertrophy of mechanical origin is known as "Dahu's sign". Dahu's sign corresponds to hypertrophy of the vertebral hemi-arch found by CT scan and leads to suspicion of controlateral lysis of the isthmus. It is the CT scan equivalent of vertebral "anisocorism" by conventional radiology.