Tan Timothy Shao Ern,  Teo Eu Leong Harvey James

Final Pr. ID: Poster #: EDU-065

Hemophilia is an inherited bleeding disorder occurring mainly in males. Bleeding in these patients may occur acutely in different and unusual locations throughout the body, sometimes with life-threatening consequences. Repeated bleeding episodes may cause chronic manifestations, frequently resulting in severe morbidity to the patient.

The most common manifestation of the disease is acute hemorrhage into joints causing hemarthrosis. This usually affects large joints such as the knee, elbow, ankle, hip and shoulder. Repeated episodes can lead to pannus formation with destruction of the synovium, cartilage and subchondral bone resulting in a condition known as hemophilic arthropathy. In the long term, this may result in debilitating chronic pain and contractures.

Soft tissue hematomas are another frequent manifestation of the disease. Chronic, organized hematomas are also known as hemophilic pseudotumours. These lesions may become calcified or infected and may result in bone erosion with pathological fractures.

Bleeding may occur in other parts of the body such as the brain and spine causing acute stroke with subsequent seizures and neurological deficits. Intra-abdominal bleeding into the abdominal cavities and intramural bleeding into the genitourinary or gastrointestinal walls may rarely occur. It is hence important for radiologists and clinicians to recognize these complications in order to detect and treat these conditions in a timely manner.

The aim of this exhibit is to familiarize readers with the imaging features of acute and chronic bleeding complications in hemophilia patients, highlighting unusual locations in the body where these can occur, using multimodality imaging i.e. Plain radiographs, ultrasound, CT and MRI. Read More

Authors:  Tan Timothy Shao Ern , Teo Eu Leong Harvey James

Keywords:  Hemophilia, Bleeding, Hemarthrosis

Berger Jonathan,  Thomas Anna,  Teague Clint

Final Pr. ID: Poster #: CR-052

* To present a rare case of rectosigmoid venous malformation in a 15-year old male patient without Klippel Trenaunay Syndrome.
* To review common syndromic and nonsyndromic causes of pediatric lower gastrointestinal bleeding with presentation of relevant imaging.
* To discuss the classic imaging features and various treatment options for colorectal venous malformations. Read More

Authors:  Berger Jonathan , Thomas Anna , Teague Clint

Keywords:  lower gastrointestinal bleeding, vascular malformations of the lower GI tract

Biscaye Stephanie,  Albertario Marco,  Guesmi Myriam,  Leloutre Beatrice,  Occelli Aurelie,  Boyer Corinne

Final Pr. ID: Poster #: CR-02 (R)

the aim of the study is to report the importance of the link between intracranial bleeding (ICB) and biliary atresia in neonates. Nowadays, the incidence of bleeding secondary to vitamin K deficiency has well-decreased, thanks to systematic vitamin K prophylaxis in neonates. However, ICB remains a severe complication of Vitamine K deficiency, with a high mortality rate and possible neurological disabilities.
Biliary atresia (BA) is a life-threatening condition in neonates, commonly diagnosed in the first 2 months of life, based on jaundice, cholestasis, pale-colored stools and dark urine. Occasionally, BA can be revealed later (25 to 65 days after birth), with severe symptoms such as intracranial, nasal or gastrointestinal bleedings. Read More

Authors:  Biscaye Stephanie , Albertario Marco , Guesmi Myriam , Leloutre Beatrice , Occelli Aurelie , Boyer Corinne

Keywords:  biliary atresia, intracranial bleeding

Ahmed Humayun,  Wang Kuan Chung,  Sussman Marshall,  Amirabadi Afsaneh,  Moineddin Rahim,  Wells Greg,  Man Carina,  Blanchette Victor,  Doria Andrea

Final Pr. ID: Poster #: SCI-036

1. To determine short-term interval changes in T2 maps of knee cartilage of healthy boys before and after a 2-minute knee-squat exercise at 1.5T and 3T MRI; 2. To determine interval changes in T2 maps pre-exercise at 1.5T vs. 3T, and post-exercise at 1.5T vs. 3T; 3. To determine interval changes pre- and post-exercise among minimal-, moderate-, and high-activity subjects at 1.5T and 3T; and 4. To determine inter- and intra-reader reliability of 1.5 and 3T values. Read More

Authors:  Ahmed Humayun , Wang Kuan Chung , Sussman Marshall , Amirabadi Afsaneh , Moineddin Rahim , Wells Greg , Man Carina , Blanchette Victor , Doria Andrea

Keywords:  Hemophilia, Arthropathy, Pediatrics, Inherited bleeding disorders, T2 mapping MRI