PMC9282773_01
Preoperative imaging. Magnetic resonance imaging of the cervical spine showing an intradural extramedullary lesion centered in the dorsal craniocervical junction measuring 2.2 x 1.9 x 2.6 cm on AP, transverse, and CC dimensions, respectively. It showed increased signal intensity and a fluid-fluid level on T2 sequence and low signal intensity on T1 sequence.
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F1
T2 sequence and low signal intensity on T1 sequence. The lesion did not show enhancement with gadolinium, with no suppression of fluid-attenuated inversion-recovery sequences and no diffusion restriction on diffusion-weighted imaging [Figure 1].
Histopathological imaging. (a) Cyst wall lined by pseudostratified columnar epithelium with ciliated cells, resting on fibrovascular layer. (b) Higher power shows cyst wall lined by pseudostratified columnar epithelium with cilia. Goblet cells are present.
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F2
The subsequent histopathological examination confirmed the diagnosis of NC [Figure 2].
Postoperative imaging. MRI of the cervical spine showing complete resection of the lesion.
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Follow-up MRI showed gross-total resection [Figure 3].