Peering beneath the surface: juxtacortical tumors of bone (part II).

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Abstract

[Indexed for MEDLINE] 19. Clin Imaging. 2018 Sep-Oct;51:1-11. doi: 10.1016/j.clinimag.2018.01.009. Epub 2018 Feb 3. Peering beneath the surface: Juxtacortical tumors of bone (part I). Gholamrezanezhad A(1), Basques K(2), Kosmas C(2). Author information: (1)Departments of Emergency Radiology and Musculoskeletal Imaging, Keck School of Medicine, University of Southern California (USC), 1520 San Pablo St, Los Angeles, CA 90033, USA. Electronic address: a.gholamrezanezhad@yahoo.com. (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 one 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.2018.01.009