Md, Mph Eric,  Richer Edward,  Strouse Peter,  Smith Ethan

Final Pr. ID: Poster #: SCI-053

Focal nodular hyperplasia (FNH) is a benign lesion. Gadoxetate disodium (Eovist), a hepatocyte specific contrast agent, is becoming more widely used in pediatric MR imaging. FNH is composed of hepatocytes and should demonstrate homogeneous enhancement on the hepatobiliary phase of imaging; however, in clinical practice a variety of enhancement patterns have been observed. The purpose of this study is to document the features of FNH on hepatobiliary phase MRI in pediatric patients. Read More

Authors:  Md, Mph Eric , Richer Edward , Strouse Peter , Smith Ethan

Keywords:  FNH, focal nodular hyperplasia, Eovist, gadoxetate disodium

Baud Catherine,  Saguintaah Magali,  Bolivar Perrin Julie,  David Stephanie,  Couture Alain,  Prodhomme Olivier

Final Pr. ID: Poster #: EDU-015

1. To describe intussusception US aspect
2. To diagnose the different anatomic forms
3. To detect a leadpoint at the intussusceptum apex
4. To provide sonographic prognostic criteria
5. To recognize benign small bowel intussusception
6. To desmontrate US impact in the therapeutic management Read More

Authors:  Baud Catherine , Saguintaah Magali , Bolivar Perrin Julie , David Stephanie , Couture Alain , Prodhomme Olivier

Keywords:  Intussusception, Ischemia, Lymphoid hyperplasia, Burkitt lymphoma, Meckel diverticulum

Willard Scott,  Birkemeier Krista

Final Pr. ID: Poster #: CR-029

We present the case of a 14 year old Asian male with a history of poorly controlled congenital adrenal hyperplasia (CAH) and growing testicular adrenal rest tumors. While on high dose steroid therapy, the lesions decreased in size from 1.1 x 1.0 cm to 0.5 x 0.8 cm. However, they subsequently increased in size, measuring 2 to 3 cm in length when the patient was not compliant with the steroid regimen due to Cushingoid side effects. The masses were bilateral, symmetric, and located at the mediastinum testis, all findings consistent with testicular adrenal rest tumors as opposed to Leydig tumor. With growth, they coalesced to form undulating masses with hyperechoic and hypoechoic layers mimicking the cerebrum, an appearance more typically seen in the adrenal glands at initial diagnosis of CAH. Current practice guidelines in much of the developed world typically result in early diagnosis and advanced therapy, making testicular adrenal rest tumors of this size and appearance unique. Read More

Authors:  Willard Scott , Birkemeier Krista

Keywords:  congenital adrenal hyperplasia, CAH, testicular adrenal rest tumor, TART

Lai Lillian,  Halabi Safwan,  Yeom Kristen,  Barth Richard,  Seekins Jayne

Final Pr. ID: Poster #: EDU-078

The pediatric thymus is a constant but confusing, dynamic entity. The goal of this educational exhibit is to illustrate the range of appearances of the normal thymus and to identify key imaging features that can help pediatric radiologists differentiate normal thymic tissue from neoplastic conditions and other mimics. Read More

Authors:  Lai Lillian , Halabi Safwan , Yeom Kristen , Barth Richard , Seekins Jayne

Keywords:  thymus, ectopic, thymic, rebound, hyperplasia

Takahashi Marcelo,  Moreira Marcia,  Motta Giovanna,  Gual Fabiana,  Soares Juliana,  Davaus Taisa

Final Pr. ID: Poster #: EDU-039

Girls with congenital adrenal hyperplasia can present with a wide variety of urogenital malformations. Understanding these malformations and the anatomical relations between the pelvic structures is paramount for surgical planning. Imaging of these patients can be done by various methods such as genitography, magnetic resonance or endoscopy.
More recently some authors have begun to propose perineal ultrasound as an alternative for imaging of these patients for pre-operative planning.
In this educational poster we will use perineal ultrasound images and detailed illustrations to:
1) Review the spectrum of genital and lower urinary tract malformations related to congenital adrenal hyperplasia in girls.
2) Explain the transperineal ultrasound technique and normal anatomy.
3) Explain the transperineal ultrasound findings and utility in girls with congenital adrenal hyperplasia.

Contents:
Normal anatomy
Pathologic changes in congenital adrenal hyperplasia
Review of what is relevant to the referring surgeon.
Ultrasound technique
Ultrasound findings in normal patients
Ultrasound findings in congenital adrenal hyperplasia. Read More

Authors:  Takahashi Marcelo , Moreira Marcia , Motta Giovanna , Gual Fabiana , Soares Juliana , Davaus Taisa

Keywords:  congenital adrenal hyperplasia, ultrasound, perineum