Publications by authors named "Darcy J Wolfman"

The appropriate evaluation of adrenal masses is strongly dependent on the clinical circumstances in which it is discovered. Adrenal incidentalomas are masses that are discovered on imaging studies that have been obtained for purposes other than adrenal disease. Although the vast majority of adrenal incidentalomas are benign, further radiological and biochemical evaluation of these lesions is important to arrive at a specific diagnosis.

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Renal cell carcinoma (RCC) is a heterogeneous group of neoplasms derived from the renal tubular epithelial cells. Chromophobe RCC (chRCC) is the third most common subtype of RCC, accounting for 5% of cases. chRCC may be detected as an incidental finding or less commonly may manifest with clinical symptoms.

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Renal failure can be divided into acute kidney injury and chronic kidney disease. Both are common and result in increased patient morbidity and mortality. The etiology is multifactorial and differentiation of acute kidney injury from chronic kidney disease includes clinical evaluation, laboratory tests, and imaging.

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Life is sometimes described as a complex tapestry and progress is not linear, but twisted like stitches, contributing to the final fabric. When tension arises, the most recent stitches unravel first. The COVID-19 pandemic is pulling back the thread of humanity's progress.

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Article Synopsis
  • Increasingly, renal masses are found incidentally in asymptomatic people, with CT and MRI being the primary methods for their evaluation.
  • When a full multiphase CT isn't possible, single-phase dual-energy CT and contrast-enhanced ultrasound using microbubble agents can be effective alternatives, especially for those who can't use traditional contrast materials.
  • The American College of Radiology provides evidence-based guidelines for imaging and treatments, regularly updated by experts and incorporating the latest research to ensure the best practices are recommended.
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Current descriptions of ultrasound evaluations, including use of the term "point-of-care ultrasound" (POCUS), are imprecise because they are predicated on distinctions based on the device used to obtain images, the location where the images were obtained, the provider who obtained the images, or the focus of the examination. This is confusing because it does not account for more meaningful distinctions based on the setting, comprehensiveness, and completeness of the evaluation. In this article, the Society of Radiologists in Ultrasound and the members of the American College of Radiology Ultrasound Commission articulate a map of the ultrasound landscape that divides sonographic evaluations into four distinct categories on the basis of setting, comprehensiveness, and completeness.

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Hematuria is a common reason for patients to be referred for imaging of the urinary tract. All patients diagnosed with hematuria should undergo a thorough history and physical examination, urinalysis, and serologic testing prior to any initial imaging. Ultrasound, CT, and MRI are the most common imaging modalities used to evaluate hematuria.

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Renal cell carcinoma (RCC) accounts for most malignant renal tumors and is considered the most lethal of all urologic cancers. For follow-up of patients with treated or untreated RCC and those with neoplasms suspected to represent RCC, radiologic imaging is the most useful component of surveillance, as most relapses and cases of disease progression are identified when patients are asymptomatic. Understanding the strengths and limitations of the various imaging modalities for the detection of disease, recurrence, or progression is important when planning follow-up regimens.

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Mucinous neoplasms of the ovary account for 10%-15% of ovarian neoplasms. They may be benign, borderline, or malignant. The large majority are benign or borderline, accounting for 80% and 16%-17%, respectively.

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Purpose: Workplace bullying has been reported in multiple medical specialties outside of diagnostic radiology within the United States. The purpose of this study was to survey diagnostic radiology residents in the United States to determine if: (1) residents had experienced bullying, (2) residents had witnessed bullying of other residents, (3) residents were aware of zero-tolerance policy for workplace bullying at their institution, (4) residents were aware of no retaliation policies for reporting bullying at their institution.

Materials And Methods: In December 2017, a weekly E-mail for 4 weeks was sent to diagnostic radiology residents in the United States (residents) who had attended the July 2017, September 2017 and October 2017 4-week American Institute for Radiologic Pathology (AIRP) resident course to participate in an online, anonymous, voluntary survey.

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Article Synopsis
  • Pyelonephritis is a kidney infection that affects the renal parenchyma and pelvis; uncomplicated cases are usually found and treated quickly with antibiotics but can lead to more serious issues if neglected, especially in immunocompromised patients.
  • Diabetic patients face a higher risk of complications such as abscess formation and may not show typical symptoms, making diagnosis more challenging, along with other high-risk groups like those with urinary tract abnormalities.
  • Effective management includes relieving symptoms, eliminating the infection, and using imaging techniques like CT, MRI, and ultrasound; guidelines for treatment and imaging are developed and regularly updated based on the latest medical research and expert input.
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Leiomyosarcoma is a malignant neoplasm that shows smooth muscle differentiation. It is the second most common sarcoma to affect the retroperitoneum. Retroperitoneal leiomyosarcomas may grow to large sizes before detection and may be an incidental finding at imaging.

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Testicular seminoma is the most common malignant tumor of the testis. It classically manifests as a painless mass. Radiologic evaluation with high-frequency ultrasonography (US) is critical for diagnosis.

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Purpose: To study the factors that might impact infarction of individual uterine leiomyomas and total tumor burden after uterine artery embolization (UAE).

Materials And Methods: This retrospective study included 91 patients (mean age, 44 y [range, 34-54 y]) who underwent UAE with tris-acryl gelatin microspheres (TAGMs) or nonspherical polyvinyl alcohol (PVA) particles. Twenty-one patients were treated with PVA (23%) and 70 were treated with TAGMs (77%).

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Both benign and malignant tumors and tumorlike conditions can arise from the nonepididymal extratesticular tissues. Benign tumors are far more common than malignant tumors, with lipoma being the most common lesion found at this site. Several imaging features can help narrow the differential diagnosis of these lesions, including the presence of fat and imaging features suggestive of fibrous tissue.

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Prostate cancer is the most common cancer in men. Modern medical imaging is intimately involved in the diagnosis and management of prostate cancer. Ultrasound is primarily used to guide prostate biopsy to establish the diagnosis of prostate carcinoma.

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Magnetic resonance imaging is commonly used for the identification and characterization of many pelvic abnormalities. Magnetic resonance provides the most comprehensive and detailed view of the uterus of any imaging modality. This article focuses on the magnetic resonance imaging features used to recognize and describe congenital uterine anomalies and benign conditions of the uterus.

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