case_images: PMC6108162_01
case_images: Preoperative MRI scan in sagittal (a and b) and transverse plane (c) showing intraspinal and paraspinal masses at levels L5 and S1
case_images: SNI-9-166-g001.jpg
case_images: PMC6108162_01_SNI-9-166-g001.jpg
case_images: F1
case_images: In particular, the lumbosacral MRI revealed a perineural cyst of the sacrum, and a large calcified mass dorsal to S1 vertebral body [Figure 1].
case_images: Microphotography of pathohistological section of removed intraspinal and paraspinal masses presented with hematoxylin-eosin staining, magnification of x100 (a) and x200 (b)
case_images: SNI-9-166-g002.jpg
case_images: PMC6108162_01_SNI-9-166-g002.jpg
case_images: F2
case_images: The pathohistological examination confirmed collagen fibers (accounting for the fibrinous external layer) covered by frank calcium deposits consistent with the diagnosis of calcinosis [Figure 2].
case_images: Control MRI scan, 5 years after initial tumor occurred, in sagittal (a and b) and transverse plane (c), revealed no recurrence of tumors
case_images: SNI-9-166-g003.jpg
case_images: PMC6108162_01_SNI-9-166-g003.jpg
case_images: F3
case_images: Five years later, the MRI again confirmed no recurrence of calcification [Figure 3].