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. 2017 Jul 6;4:101. doi: 10.3389/fvets.2017.00101

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Copyright © 2017 Fowler, Stieger-Vanegas, Vanegas, Bobe and Poulsen.

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) or licensor 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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Radiographic and computed tomography images of the thorax of a calf from group 3 (chronic-long term respiratory disease) with a respiratory score of 9 and body temperature of 39.1 C. (A) Lateral radiograph and (B) sagittal reconstructed computed tomography image of the thorax in a lung window illustrating the various areas of alveolar lung pattern (black arrow) involving the cranial aspects of the thorax most severely and to a lesser extent the caudodorsal aspects of the lungs. Three-dimensional (3D) reconstructed sagittal (C) and dorsal (D) image of the air-filled lung. The entire cranial and in part caudoventral aspects of the lungs lack air-filling and are therefore not 3D reconstructed. (E) Transverse image of the caudal thorax illustrating the various areas with a severe lung pattern occupying nearly all aspects of the lung parenchyma.