R3 Journal

Primary hyperparathyroidism remains a significant clinical challenge, and 4D CT has emerged as a high-sensitivity tool for preoperative localization—particularly when ultrasound and sestamibi scans are discordant or inconclusive. r3journal.org/doi/10.2214/...

58YO woman with ischemic cardiomyopathy history underwent minimally invasive mitral valve annuloplasty via right minithoracotomy without incident 3 years after bilateral retropectoral silicone breast augmentation. r3journal.org/doi/10.2214/...

This R3 Pictorial Essay with credit reviews the revised Atlanta classification, key imaging features of peripancreatic collections, as well as critical vascular, biliary, and gastrointestinal complications. r3journal.org/doi/10.2214/...

This R3 Explains article introduces retrieval-augmented generation (RAG), an emerging approach that enables AI systems to incorporate trusted external knowledge during response generation. r3journal.org/doi/10.2214/...

This R3 Pictorial Essay with CME highlights acute, actionable cardiac findings detectable on nongated CT, including pericardial disease, myocardial infarction, cardiac masses, coronary artery calcification, and device-related complications. r3journal.org/doi/10.2214/...

Always put your best foot forward...unless you need an ultrasound for plantar foot pain! Learn how to perform and interpret sonography for sore soles: r3journal.org/doi/10.2214/...

Imaging of Post–Lung Transplant Complications | AJR A wide range of acute and chronic complications can develop after lung transplant. Primary graft dysfunction develops within days, characterized by diffuse alveolar damage, and predisposes patients to additional later complications. Surgical complications occur days to months after transplant and include hemorrhage, vascular stenosis or thrombosis, persistent pneumothorax or pleural effusions, and bronchial dehiscence or stenosis. Infection is a leading cause of mortality in the 1st year after transplant, often with nonspecific imaging findings. Chronic lung allograft dysfunction is a heterogeneous group of disorders characterized by spirometric decline that affects a high proportion of transplant patients within 5 years of transplant, with imaging findings that vary depending on if the underlying pathology is obstructive, restrictive, or mixed. In the same 5-year timeline, nearly one in four lung transplant patients develops malignancy, including cancer of the allograft and of other organs, such as posttransplant lymphoproliferative disease or melanoma. Certain primary lung diseases can recur after transplant, most notably sarcoidosis. Lung transplant is becoming an increasingly common treatment of end-stage lung disease, and radiologists must be familiar with the expected timeline and imaging findings of these major categories of lung transplant complications.

This R3 Categorical Course Highlight reviews key post-transplant complications across the early, intermediate, and late postoperative periods—emphasizing findings to help distinguish rejection, infection, airway complications, and vascular abnormalities. r3journal.org/doi/10.2214/...

With etiologies that span both benign and malignant entities, mixed solid and cystic breast masses require careful assessment to avoid mischaracterization or unnecessary intervention: r3journal.org/doi/10.2214/...

This Case-Based Review illustrates findings of key Bell palsy mimics—infectious, neoplastic, and congenital causes—highlighting features that help distinguish idiopathic facial nerve paralysis from more serious pathology. r3journal.org/doi/10.2214/...

Illustrating characteristic abdominal and pelvic imaging findings across a wide spectrum of protozoal and helminthic infections, this R3 Pictorial Essay with CME pairs multimodality examples with clinical context to support timely, accurate diagnosis. r3journal.org/doi/10.2214/...

This new pictorial essay is a guide to MRI and CT features of RCC-related venous tumor thrombus—illustrating thrombus level, wall invasion, as well as critical vascular anatomy to support multidisciplinary decision-making.

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When ectopic pancreatic tissue becomes inflamed, its appearance can resemble metastatic or cystic masses, leading to unnecessary concern or workup. r3journal.org/doi/10.2214/...

One of the videos above has a 50 Shades of Grey references. Another mentions Pee Wee Herman. It's up to you to find out which one!

Managing Incidental Splenic Lesions YouTube video by ARRS

In this video, Myles Taffel, MD presents a straightforward, clinically based classification system for splenic lesions to help radiologists make clear follow-up and management recommendations based on the risk of malignancy.

www.youtube.com/watch?v=VxGQ...

Ergonomic Essentials for the Modern Radiologist YouTube video by ARRS

In this video, Erwin Ho, MD talks about the toll of repetitive strain injuries, ways to protect radiologists’ long-term health, and practical tools for optimizing the modern reading room.

www.youtube.com/watch?v=AHMY...

Radiomics Research: Current Status, Challenges, Limitations and Guide for Strategic Changes YouTube video by ARRS

In this video, @hyunkomd.bsky.social discusses radiomics, spaghetti, vegemite, and koalas.

www.youtube.com/watch?v=R7I_...

This R3 Pictorial Essay with credit reviews normal Meckel cave anatomy, optimal imaging approaches, as well as the spectrum of developmental infectious and neoplastic processes that can affect this region. r3journal.org/doi/10.2214/...

From gamekeeper’s thumb to hidden humeral fractures, subtle upper extremity injuries often escape notice. This article highlights where to look, what to look for, and when to pursue additional imaging for confident diagnosis.

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Most incidental splenic lesions are benign, yet their nonspecific features make diagnosis tricky. This Pictorial Essay introduces a simple algorithm for evaluating lesions found on CT, with MRI guidance for cases that need closer characterization.

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To celebrate #IDoR2025, AJR and R3 are open access this weekend, November 7-9.

See what you're missing from our two journals: arrs.org/ARRSLIVE/Edu...

Incidental endometrial thickening in postmenopausal women can be a diagnostic puzzle. This Pictorial Essay offers a clear, evidence-based approach for when and how to investigate further, with practical guidance on TVUS measurement and interpretation.

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Examining barriers to implementation—dataset diversity, software variability, and lack of prospective validation—this R3 Explains article offers a roadmap to bridge radiomics research with true clinical impact. r3journal.org/doi/10.2214/...
www.youtube.com/watch

YouTube Share your videos with friends, family, and the world

Vegemite, crocodiles, and koalas.

This isn't a trip to the zoo, it's @hyunkomd.bsky.social explaining different types of radiomics textures.

r3journal.org/doi/10.2214/...

www.youtube.com/shorts/zH9xI...

YouTube Share your videos with friends, family, and the world

Vegemite, crocodiles, and koalas.

This isn't a trip to the zoo, it's @hyunkomd.bsky.social explaining different types of radiomics textures.

r3journal.org/doi/10.2214/...

www.youtube.com/shorts/zH9xI...

Great @r3journal.bsky.social article on Stercoral colitis (SC)

💥0.04-2.3% incidence of SC perforation in postmortem exam

r3journal.org/doi/10.2214/...

@arrsradiology.bsky.social

Imaging Review of Stercoral Colitis and Its Complications | AJR Stercoral colitis is a potentially life-threatening inflammatory condition of the colon caused when impacted fecal matter increases the intraluminal pressure within the colon. This condition carries a significant mortality rate when diagnosis is delayed and leads to complications. This Pictorial Essay provides a concise review of the clinical presentation, imaging features, complications, differential diagnoses, and management of stercoral colitis. We present typical and atypical imaging manifestations across different imaging modalities, emphasizing early recognition of complications such as perforation of stercoral ulcers and intestinal obstruction.

This R3 Pictorial Essay with credit illustrates the clinical presentations, key findings, and complications of stercoral colitis—highlighting early imaging clues that can prevent perforation and sepsis: r3journal.org/doi/10.2214/...

Radiologists are the key to diagnosing septic thrombophlebitis. This pictorial essay shows you what to look for to catch it early and avoid the most serious consequences.

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This new pictorial essay covers the must-know imaging findings on CT, US, and MRI for septic thrombophlebitis.

This review covers the key imaging features that help you nail the diagnosis for a whole host of CNS infections, including toxoplasmosis.

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Trampoline injuries aren't always simple sprains. Radiologists must be prepared for a spectrum of trauma, including visceral and neurovascular injuries.

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