TY - JOUR
T1 - Facet cyst haematoma in the lumbar spine
T2 - a report of four cases.
AU - Miyatake, N.
AU - Aizawa, T.
AU - Hyodo, H.
AU - Sasaki, H.
AU - Kusakabe, T.
AU - Sato, T.
PY - 2009/4
Y1 - 2009/4
N2 - We present 4 cases of facet cyst haematoma in the ligamentum flavum of the lumbar spine. All patients presented with a one-to-3-month history of back pain or numbness in the legs, and sudden neurological deterioration. One also developed cauda equina syndrome and another developed radiculopathy. In all cases, magnetic resonance imaging showed a mass with high signal intensity on both T1- and T2-weighted images. Facet arthrography and computed tomography revealed communication between the mass and the neighbouring facet joint. The haematomas were removed en bloc with the ligamentum flavum. They were surrounded by the ligament and contained degenerated and lacerated elastic fibres but no synovial lining cells. Facet cyst haematoma is so-named because of bleeding from tissue adjacent to the facet joint into a pre-existing facet cyst.
AB - We present 4 cases of facet cyst haematoma in the ligamentum flavum of the lumbar spine. All patients presented with a one-to-3-month history of back pain or numbness in the legs, and sudden neurological deterioration. One also developed cauda equina syndrome and another developed radiculopathy. In all cases, magnetic resonance imaging showed a mass with high signal intensity on both T1- and T2-weighted images. Facet arthrography and computed tomography revealed communication between the mass and the neighbouring facet joint. The haematomas were removed en bloc with the ligamentum flavum. They were surrounded by the ligament and contained degenerated and lacerated elastic fibres but no synovial lining cells. Facet cyst haematoma is so-named because of bleeding from tissue adjacent to the facet joint into a pre-existing facet cyst.
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U2 - 10.1177/230949900901700118
DO - 10.1177/230949900901700118
M3 - Article
C2 - 19398800
AN - SCOPUS:70350513736
VL - 17
SP - 80
EP - 84
JO - Journal of the Western Pacific Orthopaedic Association
JF - Journal of the Western Pacific Orthopaedic Association
SN - 1022-5536
IS - 1
ER -