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. 2021 Oct 14;10(20):4704. doi: 10.3390/jcm10204704

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(a) Axial T1-weight image (T1 WI) shows low signal intensity from the molar lesion to the ramus on right side of the mandible (arrowhead); (b) Axial T2-weight image (T2 WI) reveals high signal intensity on the right side of the mandible (arrowhead). The margins between the normal and abnormal bone marrow are not distinct. This condition usually shows mild inflammation of the ORN; (c) Axial T1 WI shows low signal intensity from the molar lesion to the ramus on the right side of the mandible (arrowhead); (d) Axial T2 WI reveals heterogeneous intensity on the right side of the mandible (arrowhead). The margins between the normal and abnormal bone marrow are not distinct. This condition usually results in severe ORN inflammation; (e) Axial T1 WI shows low signal intensity from the molar lesion to the ramus on the right side of the mandible (arrowhead); (f) Axial T2 WI reveals low signal intensity on the right side of the mandible (arrowhead). The margins between the normal and abnormal bone marrow are not distinct. This condition is bone necrosis, which shows less inflammation.

(a) Axial T1-weight image (T1 WI) shows low signal intensity from the molar lesion to the ramus on right side of the mandible (arrowhead); (b) Axial T2-weight image (T2 WI) reveals high signal intensity on the right side of the mandible (arrowhead). The margins between the normal and abnormal bone marrow are not distinct. This condition usually shows mild inflammation of the ORN; (c) Axial T1 WI shows low signal intensity from the molar lesion to the ramus on the right side of the mandible (arrowhead); (d) Axial T2 WI reveals heterogeneous intensity on the right side of the mandible (arrowhead). The margins between the normal and abnormal bone marrow are not distinct. This condition usually results in severe ORN inflammation; (e) Axial T1 WI shows low signal intensity from the molar lesion to the ramus on the right side of the mandible (arrowhead); (f) Axial T2 WI reveals low signal intensity on the right side of the mandible (arrowhead). The margins between the normal and abnormal bone marrow are not distinct. This condition is bone necrosis, which shows less inflammation.