Rationale and objectives: During the COVID-19 pandemic, medical educators and students are facing unprecedented challenges while navigating the new virtual landscape that social-distancing policies mandate. In response to these challenges, a new virtual introduction to radiology elective was established with unique online resources and curriculum. Materials and methods: A previously in-person 2-week introductory radiology elective was converted into a completely virtual experience using an internally developed, open-source, peer-reviewed, web-based teaching modules combined with virtual lectures, interdisciplinary conferences, and readout sessions of de-identified cases loaded to a DICOM viewer. Students from the first four months of course enrollment completed a multiple choice pre-and post-course knowledge assessments and a 5-point Likert Scale survey as part of their educational experience. Results: In total, 26 4th-year medical students participated over 4 separate 2-week sessions from July to October of 2020. This included 12 students from the home intuition and 14 visiting students. On average, students scored 62.2% on the 55-question pre-test and 89.0% on the same test upon completion of the course, a statistically significant increase (p < 0.001). All 26 students felt engaged throughout the course. All 26 agreed (23 "strongly agreed") that they were more comfortable looking at imaging studies following the course. All 26 also agreed (21 "strongly agreed") that the course helped them prepare for their future clinical rotations and careers. Conclusion: Initial pilot program using unique web-based resources and student encounters during a two-week virtual introductory radiology elective proved to be a positive educational experience for the first 26 students enrolled.

Infliximab improved clinical outcomes compared to the previous use of intravenous cyclosporine in patients admitted with steroid-refractory acute severe UC.

While initial reports regarding coronavirus disease 2019 (COVID-19) focused on its pulmonary manifestations, more recent literature describes multisystem abnormalities related to its associated microvascular angiopathy. Calciphylaxis is a rare systemic condition characterized by tissue necrosis in the setting of systemic microvascular calcifications. Both COVID-19 and calciphylaxis are procoagulant diagnoses associated with vascular-mediated cutaneous findings. To our knowledge, this is the first report to document the coexistence of COVID-19 associated retiform thrombotic purpura and calciphylaxis in a single patient, to link the pathologic etiologies of the two entities, and to describe the concomitant diagnoses’ associated radiologic findings.

No abstract

The responses pertaining to opioid agreements, urine drug testing, acetaminophen, and treatment for neuropathic pain are reassuring in that they prevent misuse and abuse of opioids, prevent acetaminophen-induced hepatotoxicity, and reflect evidence-based treatments. However, we identified gaps in knowledge, including the prescription of codeine in certain populations and the use of electrocardiogram in patients on antidepressants. Further education of physicians who treat chronic pain pharmacologically is warranted.

The sinonasal tract is an environment diverse with neoplasia. Given the continued discovery of entities generally specific to the sinonasal tract, the fourth edition of the World Health Organization Classification of Head and Neck Tumors was released in 2017. It describes 3 new, well-defined entities and several less-defined, emerging entities. The new entities are seromucinous hamartomas, nuclear protein in testis carcinomas, and biphenotypic sinonasal sarcomas. Emerging entities include human papillomavirus-related sinonasal carcinomas, SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily B member 1-deficient sinonasal carcinomas, renal cell-like adenocarcinomas, and chondromesenchymal hamartomas. The literature thus far largely focuses on the pathology of these entities. Our goal in this report was to familiarize radiologists with these new diagnoses and to provide available information regarding their imaging appearances. ABBREVIATIONS: HPV ϭ human papillomavirus; NUT ϭ nuclear protein in testis; NMC ϭ nuclear protein in testis midline carcinomas; SCC ϭ squamous cell carcinoma; SH ϭ seromucinous hamartoma; SWI/SNF ϭ SWItch/Sucrose Non-Fermentable; SMARCB1 ϭ SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily B member 1; SNUC ϭ sinonasal undifferentiated carcinoma; REAH ϭ respiratory epithelial adenomatoid hamartoma; WHO ϭ World Health Organization REVIEW OF HISTOLOGIC TYPES OF SINONASAL TUMORS Accurate interpretation of sinonasal tumor imaging by neuroradiologists necessitates a fundamental understanding of the histologic subtypes. Basic classification groups include squamous cell carcinomas (SCCs), adenocarcinomas, sarcomatous/mesenchymal tumors, neuroectodermal tumors, salivary neoplasms, papillomas, respiratory epithelial lesions, hematolymphoid tumors, and tumor-like entities (On-line Table).

No abstract

No abstract