Breast Imaging   Tumor Characteristics and Molecular Subtypes in Breast Cancer Screening with Digital Breast Tomosynthesis: The Malmö Breast Tomosynthesis Screening Trial   One-view digital breast tomosynthesis screening depicts more of the same types of cancers compared with digital mammography and does not alter the molecular subtype distribution of screen-detected cancers.       Kristin Johnson, Sophia Zackrisson...Kristina Lång

Contrast Media   Hypersensitivity Reactions to Iodinated Contrast Media: A Multicenter Study of 196081 Patients   Family history and previous individual history of hypersensitivity reaction to iodinated contrast media were risk factors for new hypersensitivity occurrence. Premedication and change of iodinated contrast media type were useful measures to prevent recurrent hypersensitivity reaction.      Min Jae Cha, Dong Yoon Kang...Hye-Ryun Kang

Gastrointestinal Imaging Determining Malignant Potential of Intraductal Papillary Mucinous Neoplasm of the Pancreas: CT versus MRI by Using Revised 2017 International Consensus Guidelines   Revised high-risk stigmata and worrisome features of the 2017 international consensus guidelines are useful in identifying malignant intraductal papillary mucinous neoplasm (IPMN). Diagnostic performance for prediction of malignant IPMNs is comparable between contrast material–enhanced CT and MRI.      Ji Eun Lee, Seo-Youn Choi...Jung Hoon Kim

Molecular Imaging   Myeloperoxidase Molecular MRI Reveals Synergistic Combination Therapy in Murine Experimental Autoimmune Neuroinflammation   Molecular MRI of myeloperoxidase tracks changes from immunomodulatory drugs and establishes that combination drug therapy targeting both myeloid and lymphocytic inflammation is effective for autoimmune neuroinflammation in a mouse model, even at suboptimal doses.       Anning Li, Yue Wu...John W. Chen

Editorial: Imaging Myeloperoxidase in Demyelinating Lesions: Biomarker with Clinical Value for Multiple Sclerosis or Merely a Tool for Animal Research? Piotr Walczak

Reviews and Commentary

Images in Radiology   Post Transcatheter Mitral Valve-In-Valve Repair Cardiac Pseudoaneurysm   Prashant Nagpal, Brian F. Mullan

Communications

Letters to the Editor   Breast Cancer Screening in BRCA Mutation Carriers: Necessity of a Relevant Update of Mammographic Modalities   Catherine Colin, Isabelle Doutriaux-Dumoulin