PMC3994692_01
(a) and (b) Sagittal T2-weighted MRI demonstrating intradural extra axial lesion (left). Sagittal T2-weighted MRI at one year demonstrating tumor excision with no evidence of recurrence (right)
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F1
T12/L1, which was causing marked compression of the distal conus. The tumor measured 35 x 14 mm and displayed hyperintense signaling on pregadolinium T1 and low signal on T2 with a small crescentic element of fat on the dorsal superior border Figures 1a and 2a.
(a) and (b) Axial T1-weighted MRI with gadolinium contrast demonstrating diffuse enhancement with severe canal compromise (left). Axial T2-weighted MRI at one year demonstrating tumor excision (right)
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F2
T12/L1, which was causing marked compression of the distal conus. The tumor measured 35 x 14 mm and displayed hyperintense signaling on pregadolinium T1 and low signal on T2 with a small crescentic element of fat on the dorsal superior border Figures 1a and 2a.
(a) A hematoxilin and eosin stain, x10 magnification, showing a teratoma with a squamous-lined cyst wall with calcification, fat, and columnar lined epithelial structures. (b) A hematoxilin and eosin stain, x20 magnification, showing teratoma containing disorganized schwannian cell (left) and glial tissue (right) together with adipocytes
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F3
Histopathologic examination of the lesion demonstrated elements of endoderm, mesoderm, and ectoderm with fragments of degenerate keratin, cystic spaces lined with stratified squamous epithelium, adipose tissue, disorganized neural tissue as well as mucus secreting epithelium Figure 3a and b.