Advances in imaging techniques and the extensive use of endoscopic approaches in clinical practice have led to increased detection of gastroenteropancreatric neuroendocrine tumors (GEP-NETs), a heterogeneous and complex group of neoplasms with a wide spectrum of clinical manifestations.
In a State-of-the-Art article in the January issue of Radiology (RSNA.org/Radiology), Dushyant V. Sahani, M.D., of Massachusetts General Hospital in Boston, and colleagues discuss recent improvements in morphologic and functional imaging that have contributed to patient care in terms of detecting and characterizing the primary lesions and in staging and follow-up.
All neuroendocrine tumors have a malignant potential, but tumor grade and cell differentiation information at histopathologic examination is essential to accurately stratify the patient’s risk for metastases and recurrence, the authors write.
“Morphologic imaging using contrast-enhanced MDCT and MR imaging are most widely used in initial evaluation, in monitoring response to treatment and in screening high-risk individuals, while functional imaging techniques are useful both for detecting tumors and selecting patients for receptor-targeted therapy,” according to the authors.
Multidetector CT (MDCT)—which helps accurately identify and characterize fractures and associated complications—is the modality of choice for evaluating facial trauma. In particular, MDCT clearly depicts clinically relevant fractures in the eight osseous struts or buttresses that function as an underlying scaffold for facial structures.
In an article in the January-February issue of RadioGraphics (RSNA.org/RadioGraphics), Blair A. Winegar, M.D., of the University of Texas Health Science Center at San Antonio, and colleagues provide an overview of the facial skeletal anatomy and describe the system of facial buttresses— helpful in determining the type of fracture and identifying associated soft-tissue injuries that may require urgent care or surgery. The authors also:
“Accurate classification of facial fractures and identification of related complications by the radiologist permit prompt surgical management and an improved clinical outcome of these common traumatic injuries,” the authors write. “The facial buttress concept elucidates the structurally meaningful skeletal struts that play a role in facial form and function and helps identify the regions that are likely to require surgical reconstruction.”
The newest volume of Radiology Select, Volume 3: Coronary Artery Disease, is now available to RSNA members and non-members for purchase.
The third in the continuing series of selected Radiology articles focusing on a specific subspecialty topic, Radiology Select, Volume 3, contains 30 Radiology articles on topics including basic image formation and artifacts on cardiac MR, radiation reduction methods, advanced cardiac CT and MR imaging techniques, cardiac viability imaging, multimodality imaging and evidence-based clinical applications of diagnostic and prognostic techniques. Volume 1 focused on pulmonary nodules; Volume 2 covered stroke.
The edition is available in print, online and tablet formats. To purchase and for information on Radiology Select, visit RSNA.org/RadiologySelect.
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