ARTICLEImaging of Cat Scratch DiseaseAmin, Sagar B. MD; Sharma, Priya G. MD; Rajderkar, Dhanashree A. MDAuthor Information Dr. Amin is a Fellow, Department of Radiology, University of Maryland, Baltimore, Maryland; Dr. Sharma is Assistant Professor, Department of Radiology, University of Florida College of Medicine, Gainesville, Florida, and Dr. Rajderkar is Assistant Professor and Chief, Division of Pediatric Radiology, Department of Radiology, University of Florida College of Medicine, PO Box 100374, Gainesville, FL 32610; E-mail: firstname.lastname@example.org. After participating in this educational activity, the radiologist should be better able to differentiate the typical and atypical presentations of cat scratch disease, distinguish mimickers, and propose treatment possibilities. The authors, faculty, and staff in a position to control the content of this CME activity and their spouses/life partners (if any) have disclosed that they have no relationships with, or financial interests in, any commercial organizations pertaining to this educational activity. Lippincott Continuing Medical Education Institute, Inc., is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. Lippincott Continuing Medical Education Institute, Inc., designates this enduring material for a maximum of 2 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity. To earn CME credit, you must read the CME article and complete the quiz and evaluation on the enclosed answer form, answering at least seven of the 10 quiz questions correctly. This continuing medical education activity expires on October 14, 2020. Contemporary Diagnostic Radiology: October 15, 2018 - Volume 41 - Issue 21 - p 1-5 doi: 10.1097/01.CDR.0000546305.24335.da Buy Take the CME Test Metrics Abstract Cat scratch disease is caused by the inoculation of Bartonella henselae, a gram-negative bacterium, by either a bite or a scratch from an insect or a cat, and it most frequently occurs in adolescence. Cat scratch disease most commonly presents with fever, headache, fatigue, and tender regional lymphadenopathy that subsides in several weeks, with or without antibiotics. However, in 5% to 10% of patients, cat scratch disease may disseminate to involve multiple organ systems and mimic more serious systemic conditions both clinically and radiologically, requiring a more in-depth investigation.1 This article presents the common and rare imaging features of regional and multiorgan cat scratch disease using a multimodality imaging approach. We highlight key characteristics so that they may become more recognizable to the radiologist. Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.