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ARRS COTW- June 25, 2018
PEDIATRIC RADIOLOGY: Genitourinary Radiology Case Author: Krista L. Birkemeyer, MD, Cincinnati Children’s Hospital Medical Center History 2-day-old boy (born at 37 weeks’ gestation) with hematuria and hypertension; ultrasound has been performed, and the next imaging study must be determined. Imaging Findings Longitudinal gray-scale ultrasound image of the right kidney (A) shows abnormally increased parenchymal echogenicity,…
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ARRS COTW- June 19, 2018
ULTRASOUND: Vascular Case Author: Deborah Rubens, MD, University of Rochester History 61-year-old woman without symptoms undergoing preoperative evaluation for cardiac surgery. Imaging Findings Sagittal spectral color Doppler image of the distal right common carotid artery (A) yields a peak systolic velocity of 51 cm/s. Sagittal spectral color Doppler image of the right internal carotid artery…
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ARRS COTW- June 11, 2018
GENITOURINARY IMAGING: Collecting System, Ureter, Bladder Case Author: Rupan Sanyal, MD, University of Alabama at Birmingham History 26-year-old woman with pelvic pain and multiple skin lesions. Imaging Findings Axial (A) and coronal (B) contrast-enhanced CT images show severe diffuse bladder wall thickening. Axial bone window CT image (C) shows widening of the sacral neural foramen…
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ARRS Case of the Week- June 4, 2018
BREAST IMAGING: Breast MRI Case Author: Peter R. Eby, MD, Virginia Mason Medical Center History 68-year-old woman undergoing screening MRI 1 year after lumpectomy. Imaging Findings Axial (A) and sagittal (B) contrast-enhanced T1-weighted fat-suppressed breast MR images show a lobulated mass with irregular margins and rim enhancement in the lower outer right breast. T1-weighted image…
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ARRS Case of the Week- May 21, 2018
MUSCULOSKELETAL IMAGING: Metabolic/Hematologic Case Author: Daniel E. Wessell, MD, PhD, Mallinckrodt Institute of Radiology at Washington University in Saint Louis History 27-year-old man with left knee pain. Imaging Findings Coronal fat-suppressed T2-weighted fast spin-echo (A) and T1-weighted spin-echo (B) MR images of the left knee show nodular replacement of the normal fatty marrow. T1-weighted MR…
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ARRS Case of the Week- May 15, 2018
NEURORADIOLOGY: Pediatric/Congenital Case Author: Sumit Pruthi, MBBS, Monroe Carell Jr. Children’s Hospital at Vanderbilt University History 14-year-old girl with low back pain Imaging Findings Posteroanterior radiograph (A) and 3D volume-rendered CT scan (B) of the spine shows moderate right convex thoracolumbar scoliosis and a wedge-shaped vertebral body at thoracolumbar junction. Diagnosis Hemivertebral body anomaly (congenital…
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ARRS Case of the Week- May 7, 2018
CHEST IMAGING: Immunocompromised Case Author: Maria Shiau, MD, New York University School of Medicine, Langone Medical Center History 40-year-old man with AIDS, increasing cough, and low-grade fever. Imaging Findings Posteroanterior chest radiograph (A) shows multiple bilateral pulmonary nodules and masses. Axial CT images in lung windows (B–E) show a right upper lobe nodule and multiple…
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ARRS Case of the Week- Apr 30, 2018
CARDIOVASCULAR IMAGING: Thoracic Arteries Case Author: Diana Litmanovich, MD, Beth Israel Deaconess Medical Center History 89-year-old man with chest pain. Imaging Findings MDCT angiogram of the chest (A) shows a large, irregular soft-tissue filling defect along the posterior aspect of the distal aortic arch that protrudes into the lumen. Coronal (B) and sagittal (C) reformatted…
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ARRS Case of the Week- Apr 16, 2018
PEDIATRIC RADIOLOGY: Musculoskeletal Radiology Case Author: Krista L. Birkemeier, MD, Cincinnati Children’s Hospital Medical Center History 13-year-old male baseball player with right shoulder pain for 3 months who reports no trauma when asked about it. Imaging Findings Frontal radiograph of the right shoulder (A) shows mild widening and irregularity (arrow) of the lateral aspect…
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ARRS Case of the Week- Apr 9, 2018
ULTRASOUND: Low urine output after renal transplant Case Author: Deborah Rubens, MD, University of Rochester History 61-year-old man who has undergone hepatic and renal transplants and has worsening renal function. Ultrasound has been performed, and the next step must be determined. Imaging Findings Transverse color Doppler image with spectral tracing obtained postoperatively on day of…