PMC6350033_01
T1-weighted sagittal MRI revealing an intradural cyst lying ventral to the cervicomedullary junction, displacement of this area and shows isointense lesion and band-shaped mild hyper-intensity at the lower border of the lesion (A), T1-weighted axial MRI shows severe compression of the cystic mass (B), T2-weighted sagittal image demonstrates hyper-intense cystic mass and band-shaped hypo-intensity at the posterior border of the lesion (C), axial T2-weighted scan reveals that cystic mass was filling almost cervicomedullary junction (D), diffusion-weighted imaging (E) and fluid attenuation invention recovery (F) exhibit relationship of the cyst and cervicomedullary region without any ischemic changes.
nmccrj-6-1-g001.jpg
PMC6350033_01_nmccrj-6-1-g001.jpg
F1
On T2WI-weighted images exhibited mild hyper-intensity including hypo-intense area at the posterior side of cyst and displacing the cervicomedullary region to the opposite side (Figs. 1A-1D). No ischemic changes or demyelination observed on axial T2-weighted, diffusion and flair images (Figs. 1D-1F).
The post-operative sagittal (A) and axial (B) T2 scans showing complete excision of lesion, the post-operative sagittal (C) and axial T1 (D) scans revealed decompressed cervicomedullar area.
nmccrj-6-1-g002.jpg
PMC6350033_01_nmccrj-6-1-g002.jpg
F2
Follow-up MRI at 3 months showed no residual lesion (Figs. 2A-2D).
Hematoxylin-eosin section photomicrographs showing prominent columnar and cuboidal epithelial lining along with irregular bundles of collagen (x200) (A), Confirmation of mucinous production can be established by histochemical assays utilizing periodic acid-Schiff (x200) (B).
nmccrj-6-1-g003.jpg
PMC6350033_01_nmccrj-6-1-g003.jpg
F3
Histopathologic diagnosis of the excised cyst wall was showing prominent columnar and cuboidal epithelial lining along with irregular bundles of collagen (Figs. 3A and 3B).