Radiographic patterns of periosteal bone reactions associated with endodontic lesions.

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Abstract

Conflict of interest statement: Conflict of Interest: No potential conflict of interest relevant to this article was reported. 18. Clin Imaging. 2018 Jul-Aug;50:113-122. doi: 10.1016/j.clinimag.2018.01.005. Epub 2018 Jan 11. Peering beneath the surface: juxtacortical tumors of bone (part II). Gholamrezanezhad A(1), Basques K(2), Kosmas C(2). Author information: (1)Department of Radiology, Cleveland Medical Center, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, USA. Electronic address: ali.gholamrezanezhad@med.usc.edu. (2)Department of Radiology, Cleveland Medical Center, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, USA. Juxtacortical or surface tumors of bone are neoplasms arising from or just outside the cortex, and are composed of different histologic types. Although the imaging appearances of these lesions have similarities to their intramedullary counterparts, their location alters their radiographic and MR characteristics, creating difficulties in diagnosis. Meanwhile, several non-neoplastic lesions, such as stress reaction/stress fracture and indolent infectious processes, compound the differential diagnosis. Neoplastic juxtacortical lesions of bone have been classified into five categories: cartilaginous, fibrous, lipomatous, osseous, and metastatic tumors. Our goal in part two of this review is to illustrate the characteristic radiographic, CT and MR imaging features of various juxtacortical neoplasms, including pathognomonic imaging findings that can aid in diagnosis, and to develop an appropriate differential diagnosis for surface lesions based on imaging characteristics, lesion location and patient age. Copyright © 2018 Elsevier Inc. All rights reserved. DOI: 10.1016/j.clinimag.2018.01.005