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. 2019 Mar 28;6:90. doi: 10.3389/fvets.2019.00090

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Copyright © 2019 Hansen and Kent.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Axial CT imaging of primary head and neck tumors. (A) (Upper left) Non-contrast CT imaging with bone window/leveling reveals extensive bony lysis in one mandible from an oral melanoma. (B) (Upper right) Contrast CT imaging of the same case reveals a heterogeneously contrast enhancing mass that extends medially into the soft tissues near the affected mandible. (C) (Lower left) Contrast CT imaging reveals cribriform lysis (red circle) and invasion into the cranial vault of a contrast enhancing nasal carcinoma. (D) (Lower right) A large, contrast enhancing, carotid body tumor infiltrates into the surrounding soft tissues (dashed red line) and extends to the spinal cord (solid arrow).