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Society for Pediatric Radiology – Poster Archive

Lee Collins

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Showing 3 Abstracts.

Congenital portosystemic shunts represent a rare congenital malformation which diverts portal blood to the systemic circulatory system. These malformations can either be intrahepatic or extrahepatic. The intrahepatic portosystemic shunts have been classified into four types. Intrahepatic congenital portosystemic shunts demonstrates a persistent communication between the portal and hepatic venous structures, which were derived from the embryonic vitelline veins or between the vitelline and subcardinal veins. A ductus venosus, a normal structure in neonates, represents an intrahepatic congenital portosystemic shunt between the left portal vein and left hepatic vein. It typically closes between 2-17 days of postnatal life. In our institution, since April 2020, there have been five separate cases of intrahepatic congenital portosystemic shunts in newborns. We will review the imaging for each of these cases, as well as review the current literature and classification of portosystemic shunts. Read More

Meeting name: SPR 2022 Annual Meeting & Postgraduate Course , 2022

Authors: Collins Lee, Pomeranz Christy, Cohen Sara, Baad Michael, Kovanlikaya Arzu

Keywords: Portosystem Shunt, Liver, Ultrasound

A palpable finding along the chest wall is a frequent indication for pediatric ultrasound. Accurate identification of benign lesions can reassure families and appropriately triage patients who need follow-up, cross sectional imaging, or biopsy. The purpose of this exhibit is to review chest wall anatomy, illustrate ultrasound techniques, and discuss key ultrasound imaging features of common benign lesions and normal variants. Cases will include but are not limited to: accessory breast tissue, gynecomastia, sternalis muscle, angulated costal cartilage, rib fracture, chondral injury, ganglion cyst arising from the sternoclavicular joint, osteochondroma, neurofibroma, lipoma, myofibroma, pilomatrixoma, dermoid and epidermoid cysts, fibrous hamartoma of infancy, hemangioma, lymphatic malformation, and abscess. Each case will include the clinical presentation of the patient, classic ultrasound imaging features, and subsequent management. Read More

Meeting name: SPR 2020 Annual Meeting & Postgraduate Course , 2020

Authors: Colucci Philip, Cohen Sara, Baad Michael, Pomeranz Christy, Collins Lee, Kovanlikaya Arzu

Keywords: chest wall, ultrasound, pediatric

Congenital urethral polyps are a rare benign fibroepithelial lesion, typically arising from the verumontanum. We present a case of a 2 day old neonate undergoing renal ultrasound for follow up of prenatally diagnosed urinary tract dilation. Ultrasound demonstrated severe bilateral central and peripheral caliyectasis with parenchymal thinning, bilateral distal ureterectasis and marked bladder wall thickening. An echogenic soft tissue nodule was visualized at the bladder outlet. Subsequent VCUG showed a rounded filling defect intermittently located in the posterior urethra and bladder neck, suspicious for a diving mobile polyp. Transurethral resection of the polyp was performed. This case highlights an unusual cause of bladder outlet obstruction in neonates which can mimic the presentation and imaging appearance of posterior urethral valves. Read More

Meeting name: SPR 2022 Annual Meeting & Postgraduate Course , 2022

Authors: Collins Lee, Cohen Sara, Pomeranz Christy, Jarrett Delma, Baad Michael, Akhavan Ardavan, Kovanlikaya Arzu

Keywords: congenital urethral polyp, urinary tract dilation