Welcome to the JSAR (Japanese Society of Abdominal Radiology) Radiologic–Pathologic Correlation Section. This new section includes 6 case reports [1–6] with beautiful pathological correlation. As the President of the JSAR, it is my great pleasure to introduce where and how these case reports come from.

The JSAR was established in 1990 and now has a 26-year history. From its start, founding members had decided to form a society having both functions of gastrointestinal radiology (so-called GI) and of genitourinary radiology (so-called GU). In addition to this, it was an outstanding decision made by founding members that case reports which were strictly correlated with pathological findings would be the main constituent of its annual meeting, and all oral presentations are subject of comments of invited pathologists. The policy of annual meeting of the JSAR has been requesting presenters of case reports to establish complete pathological correlation in his/her institution. The JSAR invites 5–6 pathologists every year 2 weeks earlier to the annual meeting to check abstracts and pathological images. At the time of presentation, discussion between pathologists and radiologists will make a great and more perfect correlation. Discussion between presenters, pathologists, and experts of both gastrointestinal radiology and genitourinary radiology reaches to the point of diagnostic imaging, and young radiologists can learn a lot from any single case.

Dr. Morton A. Meyers, the previous Editor-in-Chief of Abdominal Imaging, and Dr. C. Daniel Johnson, the current Editor-in-Chief of Abdominal Imaging/Radiology, understood the merit of publication of this JSAR’s Radiologic–Pathologic Correlation, although most medical journals had given up to publish case reports because of their relatively low citation. Five papers of the JSAR Radiologic–Pathologic Correlation Section first appeared in a group in Abdominal Imaging in 2015 [7–11] and three appeared independently [12–14]. This is the second appearance of 6 papers in a group. Of all 14 papers, eight achieved Uchida Award which commemorated the name of late Dr. Hideo Uchida, the first JSAR President, as the most excellent paper of the year at the JSAR annual meeting, and six other papers were highly regarded in the annual meeting of the JSAR 2014 and 2015.

I hope the readers of Abdominal Radiology will enjoy this JSAR’s Radiologic–Pathologic Correlation Section.