Synovial Cysts. Surgical Removal

Fig. 1

a–g. FSE T2 sagittal (a–c) and axial (d–g) sections. L4-L5 small cystic lesion in right foraminal recess (arrow), supplied by inter-apophyseal fluid. Bilateral interapophyseal degenerative phenomenon, with articular hypertrophy and subsequent narrowing of vertebral canal (e–g)

Pre-operative Imaging

Fig. 2

a–f. FSE T2 sagittal sections in supine (a–c) and orthostatic position (d–f). Moving from supine (a–c) to orthostatic position (d–f) there is narrowing of vertebral canal at L4-L5 with incremented “impingement” of synovial cyst (arrow)

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