Ovarian Torsion in a Teenage Girl with Genitourinary Anomaly.

We present the clinical presentation, sonography, CT, and MR imaging as well as correlative intra-operative and gross pathological findings of ovarian torsion in a 14-year-old girl. Our findings are discussed in the context of prior imaging studies performed for the evaluation of ovarian torsion. Ovarian torsion is not an uncommon cause of acute abdominal pain in children and teenage girls. Diagnosis of this entity can be difficult based on clinical presentation or on imaging appearance alone

Ovarian Torsion in a Teenage Girl with Genitourinary Anomaly

We present the clinical presentation, sonography, CT, and MR imaging as well as correlative intraoperative and gross pathological findings of ovarian torsion in a 14-year-old girl. Our findings are discussed in the context of prior imaging studies performed for the evaluation of ovarian torsion. Ovarian torsion is not an uncommon cause of acute abdominal pain in children and teenage girls. Diagnosis of this entity can be difficult based on clinical presentation or on imaging appearance alone. Case Report A 14-year-old girl suddenly developed right lower quadrant pain associated with nausea while showering. After an initial evaluation at an outside hospital, she was transferred to our institution. Patient denied fevers, chills, dysuria, urinary frequency, diarrhea, and constipation. She was G0 with no sexual activity. She has had irregular cycles lasting 2-3 months since she was 11, the last of which was too long ago for her to remember. Her past medical history was unremarkable. She had no allergies and denied tobacco, alcohol, illicit drug and medication use. Physical exam was remark-Citation: Taheri MR, Dubinsky TJ, Kolokythas O. Ovarian torsion in a teenage girl with genitourinary anomaly. Radiology Case Reports. [Online] 2008;3:155. Copyright: © 2008 The Authors. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 2.5 License, which permits reproduction and distribution, provided the original work is properly cited. Commercial use and derivative works are not permitted. Abbreviations: CT, computed tomography; MRI, magnetic resonance imagin

Imaging of uncommon retroperitoneal masses

Retroperitoneal masses not arising from major solid organs are uncommon. Although there is no simple method of classifying retroperitoneal masses, a reasonable approach is to consider the masses as predominantly solid or cystic and to subdivide these into neoplastic and nonneoplastic masses. Because the treatment options vary, it is useful to be able to differentiate these masses by using imaging criteria. Although the differential diagnosis of retroperitoneal masses can be narrowed down to a certain extent on the basis of imaging characteristics, patterns of involvement, and demographics, there is still a considerable overlap of imaging findings for these masses, and histologic examination is often required for definitive diagnosis. Computed tomography (CT) and magnetic resonance (MR) imaging play an important role in characterization and in the assessment of the extent of the disease and involvement of adjacent and distant structures. Familiarity with the CT and MR imaging features of various retroperitoneal masses will facilitate accurate diagnosis and staging for aggressive lesions