PMC4617023_01
Magnetic resonance imaging and angiomagnetic resonance imaging. (a and b) Magnetic resonance imaging shows a cystic tumor in the left anterior cervical region creating mas effect over the midline structures. (c) There is no evidence of intramural vascular flow in the angiomagnetic resonance imaging
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F1
Such growth gradually increased to the point where by the end of the pregnancy it had a diameter of approximately 10 cm x 15 cm, it made swallowing difficult, dysphonia, and generated local pain (nonneuropathic pain) [Figure 1].
(a and b) The immunohistochemistry with S-100 protein shows the positive neoplastic cells in the limits of the tumoral wall (x40)
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F2
The hematoxylin and eosin stain shows the presence of neoplastic cells, nuclear and diffuse cytoplasmic positivity to S-100 protein [Figure 2].