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ARRS COTW- November 13, 2018
CHEST IMAGING: Immunocompromised Case Author: Maria Shiau, MD, New York University School of Medicine, Langone Medical Center History 25-year-old woman with fever and cough and positive HIV status. Imaging Findings Posteroanterior chest radiograph shows a cavitary lesion in the mid right lung. Diagnosis Pneumocystis jiroveci pneumonia Teaching Points Cavitary lung disease in patients with AIDS…
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ARRS COTW- November 5, 2018
MUSCULOSKELETAL IMAGING: Metabolic/Hematologic Case Author: Daniel E. Wessell, MD, PhD, Mallinckrodt Institute of Radiology at Washington University in Saint Louis History 8-year-old boy with distal right femur pain after recent resection of a lesion from the proximal right tibia. Imaging Findings Anteroposterior (A) and lateral (B) radiographs of the right knee show dense metaphysial bands…
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ARRS COTW- August 13, 2018
MUSCULOSKELETAL IMAGING: Metabolic/Hematologic Case Author: Daniel E. Wessell, MD, PhD, Mallinckrodt Institute of Radiology at Washington University in Saint Louis History 29-year-old man with bilateral hand pain. Imaging Findings Dorsopalmar radiographs of the left (A) and right (B) hands show brachydactyly, brachyphalangia, undertubulation of the metacarpals and phalanges, ulnar exostoses, and diffuse soft-tissue calcifications. Magnified…
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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- Feb 16, 2018
CHEST IMAGING: Diaphragm and Pleura Case Author: Rachna Madan, MD Brigham Women’s Hospital History 60-year-old woman with cervical spondylosis, recent cervical spinal surgery, and worsening dyspnea; chest radiography has been performed, and the next step must be determined. Imaging Findings Posteroanterior (A) and lateral (B) chest radiographs show an elevated hemidiaphragm. Chest CT Electromyography Fluoroscopic…
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ARRS Case of the Week- Feb 12, 2018
PEDIATRIC RADIOLOGY: Musculoskeletal Radiology Case Author: Ricardo Restrepo, MD, Miami Children’s Hospital History 12-year-old male soccer player with right foot pain who reports no recent trauma when asked about it. Imaging Findings Lateral radiograph of the ankle (A) shows an elongated and prominent anterior process of the calcaneus (arrow). Sagittal STIR MR image (B) shows…
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ARRS Case of the Week- Jan 22, 2018
BREAST IMAGING: Calcifications Case Author: Jiyon Lee, MD, New York University School of Medicine History 66-year-old woman without symptoms undergoing routine annual surveillance mammography with history of malignant lumpectomy, radiation, and chemotherapy for two sites in the left breast 10 years earlier. Imaging Findings Mediolateral oblique (A) and exaggerated craniocaudal (B) mammograms of the left…
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ARRS Case of the Week- Dec 11, 2017
PEDIATRIC RADIOLOGY: Musculoskeletal Radiology Case Author: Ricardo Restrepo, MD, Miami Children’s Hospital History 14-year-old boy with right knee pain for 3 months who reports no trauma when asked about it. Imaging Findings Frontal radiograph of the knee (A) shows a well-defined round lucent lesion involving the medial femoral condyle (arrow). Coronal fat-suppressed T2-weighted MR image…
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ARRS Case of the Week- Nov 20, 2017
BREAST IMAGING: Calcifications Case Author: Jiyon Lee, MD, New York University School of Medicine History 49-year-old woman participating in surgical consultation after recent ultrasound-guided core biopsy of a new palpable lump in the right lateral breast showed lobular carcinoma in situ, classic subtype; the actual diagnosis and appropriate next step in management must be determined.…
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ARRS Case of the Week- Nov 6, 2017
MUSCULOSKELETAL IMAGING: Arthritis of the Proximal Joints Case Author: Kirkland W. Davis, MD, University of Wisconsin School of Medicine and Public Health History 28-year-old man with hip and back pain. Imaging Findings Anteroposterior radiograph of the pelvis shows symmetric narrowing of the hip joint spaces and osteophytes. Enthesophyte production (whiskering) is evident at the ischial…