Burgos Daylen Sire,  Park Halley

Final Pr. ID: Poster #: CR-009

An 8-year-old female with Poland syndrome of the left chest initially presents to be considered for reconstructive surgery. On the preoperative MRI, along with the expected hypoplastic left hemithorax including the ribs, pectoralis major, and minor muscles, there is the absence of a left ovary in the pelvis and left kidney. Furthermore, there is an incidental 9 mm multicystic structure at the anterior spleen. No further workup was done at that time. After undergoing reconstructive surgery as well as scoliosis, occasional chest pain is experienced 10 years later. During the clinical workup, incidentally noted on the CT chest with contrast is increased anterior splenic hypodensity. The possibility for ectopic ovary or splenogonadal fusion was raised as well as involuted or atrophic multicystic dysplastic kidney, neoplasm, or vascular malformation.
Initial workup included the US which revealed a 3.3 cm nonspecific lesion with posterior acoustic enhancement and without substantial internal vascularity. MRI of the spleen was performed which revealed a multicystic lesion, with imaging characteristics highly suggestive of an ectopic left ovary containing multiple physiologic follicles, from splenogonadal fusion. The uterus is also noted to be a right-sided unicornuate uterus. Furthermore, tiny non-communicative cystic changes in a linear manner left lateral to the psoas muscle, were identified, which may represent involuted/atretic remnant of the left multicystic dysplastic kidney. Read More

Authors:  Burgos Daylen Sire , Park Halley

Keywords:  Ectopic, Ovary, splenogonadal

Morris Melinda,  Lannigan Francis,  Thompson Andrew

Final Pr. ID: Poster #: EDU-008

The imaging characteristics of ectopic thymus will demonstrated on ultrasound and MRI. These imaging characteristics and the embryonal migration of the thymus will be illustrated with biopsied proven examples of ectopic thymus. Characteristic physical examination correlation is provided. The importance of confirming the precence or absence of thymus in the mediastinum is highlighted. A pictorial essay will be provided.
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Authors:  Morris Melinda , Lannigan Francis , Thompson Andrew

Keywords:  Thymus, Ectopic, Imaging

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

Osman Radya,  Karmazyn Boaz

Final Pr. ID: Poster #: EDU-033

The Thymus appears in a variety of sizes and shapes, and may even change in size as a response to disease process in the same patient. These underlying variations, as well as ectopic or accessory tissue, can mimic pathology and may become a source of confusion resulting in anxiety, unwarranted imaging, unnecessary biopsy, chemoradiation or even surgery. Read More

Authors:  Osman Radya , Karmazyn Boaz

Keywords:  Thymus, Ectopic thymic tissue, Thymic pathology