Interventional Radiology
Spontaneous Portoazygos Shunt in a Patient with Portal Hypertension by Jacob Gebrael et al. |
Published: 2013 Jul Issue: 7(7) :: Pages: 32-36
| Abstract: We present a case of spontaneous portoazygos shunt in a patient with liver cirrhosis and portal hypertension. The shunt was incidentally detected by abdominal magnetic resonance imaging for routine evaluation of liver cirrhosis. Multiplanar reconstruction images demonstrated the portal vein communicating with the azygos vein that was dilated and tortuous along its course to the mediastinum. Although there has been a case of congenital portoazygos shunt reported in a neonate with multiple congenital anomalies, to the best of our knowledge, this is the first case of spontaneous portoazygos shunt developed in an adult with portal hypertension.
Available image modalities: (click on modality to browse for other articles) Magnetic Resonance Imaging, Table
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Musculoskeletal Imaging
Extraskeletal Osteosarcoma: A case report and review of the literature by Michael Hoch et al. |
Published: 2013 Jul Issue: 7(7) :: Pages: 15-23
| Abstract: We report an instructive case of extraskeletal osteosarcoma in a 63-year-old African American male who presented after an episode of recent trauma, with clinical and radiological features characteristic of this neoplasm. Osteosarcoma is the most common primary malignant tumor of bone in young adults, but the extraskeletal variety is very uncommon. The radiological and pathological features of this neoplasm will be discussed, along with a review of the literature.
Available image modalities: (click on modality to browse for other articles) Conventional Radiography, Magnetic Resonance Imaging, Nuclear Medicine, Macroscopic pathology, Table
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Genitourinary Radiology
Stromal prostatic sarcoma: a rare tumor with rare clinical and imaging presentation by Anamaría Rojas-Jiménez et al. |
Published: 2013 Jul Issue: 7(7) :: Pages: 24-31
| Abstract: Adult prostatic stromal sarcoma is a rare malignant tumor. The main presenting symptom is urinary retention secondary to bladder outlet obstruction. Prostatic Specific Antigen level can be normal. Imaging features show a prostate mass with or without pelvic organ invasion depending on the aggressiveness of the tumor. We present a patient with prostatic stromal sarcoma who debuted with urinary obstruction, leukocytosis and neutrophilia, prostate enlargement, and hypodense prostate areas on CT images, simulating prostatitis with abscess formation.
Available image modalities: (click on modality to browse for other articles) Computed Tomography, Microscopic pathology, Table
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General Radiology
Radiographic diagnosis and differentiation of an aggressive angiomyxoma in a male patient by Grzegorz Marek Karwacki et al. |
Published: 2013 Jul Issue: 7(7) :: Pages: 1-6
| Abstract: Aggressive angiomyxoma is a rare soft-tissue tumor which usually occurs in female patients of reproductive age. Its occurrence in men is even more unusual and as illustrated in this case the difference between pathology suggested by a physical examination and its actual extent can be quite striking. We present a case report of an 81-year-old man with the typical MRI appearances of a pelvic aggressive angiomyxoma, describe imaging and histopathologic features of this rarely seen locally infiltrative neoplasm and also discuss therapeutic options for patients with an aggressive angiomyxoma.
Available image modalities: (click on modality to browse for other articles) Magnetic Resonance Imaging, Microscopic pathology, Table
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Neuroradiology
Bilateral thalamic infarcts due to occlusion of the Artery of Percheron and discussion of the differential diagnosis of bilateral thalamic lesions by Eva Guy Rodriguez et al. |
Published: 2013 Jul Issue: 7(7) :: Pages: 7-14
| Abstract: The Artery of Percheron is a rare vascular variant in which a single dominant thalamoperforating artery arises from one P1 segment and bifurcates to supply both paramedian thalami. Occlusion of this uncommon vessel results in a characteristic pattern of bilateral paramedian thalamic infarcts with or without mesencephalic infarctions. We report a case of a 31-year-old man with acute bilateral thalamic infarcts and a truncated Artery of Percheron demonstrated on magnetic resonance angiography (MRA). Occlusion of the vessel was presumably due to embolism from a patent foramen ovale that was subsequently closed. The case presentation is followed by a discussion of bilateral paramedian thalamic infarcts including the causes and clinical presentation. The differential diagnosis of vascular and nonvascular etiologies of bilateral thalamic lesions is also discussed.
Available image modalities: (click on modality to browse for other articles) Magnetic Resonance Imaging, Ultrasound, Graph, Table
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