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Acta Radiologica Short Reports    [3 followers]  Follow    
  This is an Open Access Journal Open Access journal
     ISSN (Print) 2047-9816 - ISSN (Online) 2047-9816
     Published by Sage Publications Homepage  [718 journals]
  • Pulmonary intimal sarcoma: a rare differential diagnosis for arterial
           filling defects on a chest CT
    • Authors: Ebner, L; Huber, A, Ott, D, Christe, A.
      Pages: 2047981613 - 2047981613
      Abstract: We present a rare case of pulmonary intimal sarcoma mimicking pulmonary embolism in a 40-year-old woman. Although extremely rare, these tumors must be considered in patients who present inappropriate imaging findings that suggest embolism. Chest computed tomography is the modality of choice to determine the extent of the tumor. We present a female patient with suspected embolism that was in fact found to be an endothelial sarcoma of the pulmonary arteries.
      PubDate: 2014-02-25T06:33:08-08:00
      DOI: 10.1177/2047981613514052|hwp:resource-id:sparr;3/2/2047981613514052
      Issue No: Vol. 3, No. 2 (2014)
  • Abdominopelvic actinomycosis: spectrum of imaging findings and common
    • Authors: Triantopoulou, C; Molen, A. V. d, Es, A. C. V, Giannila, M.
      Pages: 2047981614 - 2047981614
      Abstract: Background Actinomycosis is a rare suppurative disease that may mimic other inflammatory conditions on imaging. Its invasive nature may lead to mass formation and atypical presentation thus making accurate diagnosis quite difficult. Purpose To describe the different aspects of abdominopelvic actinomycosis on cross-sectional imaging and indicate discriminative findings from other inflammatory or neoplastic diseases. Material and Methods In our study we analyzed 18 patients (15 women, 3 men; age range, 25–75 years; mean age, 50 years) with pathologically proved abdominopelvic actinomycosis. Contrast-enhanced abdominal computed tomography (CT) had been performed in all patients. Eleven patients had a history of using intrauterine contraceptive devices. Bowel site, wall thickness and enhancement degree, inflammatory infiltration, and features of peritoneal or pelvic mass were evaluated at CT. Results The sigmoid colon was most commonly involved. Most patients showed concentric bowel wall-thickening, enhancing homogenously and inflammatory infiltration of pericolonic fat was mostly diffuse. In 11 patients, one or more pelvic abscesses were revealed, while a peritoneal or pelvic mass adjacent to the involved bowel segment was seen in three cases. Infiltration into the abdominal wall was seen in three cases while in one case there was thoracic dissemination. Conclusion Actinomycosis is related not only to long-term use of intrauterine contraceptive devices and should be included in the differential diagnosis when cross-sectional imaging studies show concentric bowel wall-thickening, intense contrast enhancement, regional pelvic or peritoneal masses, and extensive inflammatory fat infiltration with abscess formation.
      PubDate: 2014-02-27T08:34:27-08:00
      DOI: 10.1177/2047981614524570|hwp:resource-id:sparr;3/2/2047981614524570
      Issue No: Vol. 3, No. 2 (2014)
  • Magnetic resonance imaging in acute mastoiditis
    • Authors: Platzek, I; Kitzler, H. H, Gudziol, V, Laniado, M, Hahn, G.
      Pages: 2047981614 - 2047981614
      Abstract: Background In cases of suspected mastoiditis, imaging is used to evaluate the extent of mastoid destruction and possible complications. The role of magnetic resonance imaging (MRI) in mastoiditis has not been systematically evaluated. Purpose To assess the diagnostic performance of MRI in patients with suspected acute mastoiditis. Material and Methods Twenty-three patients with suspected acute mastoiditis were included in this retrospective study (15 boys, 8 girls; mean age, 2 years 11 months). All patients were examined on a 1.5 T MRI system. The MRI examination included both enhanced and non-enhanced turbo spin echo (TSE), diffusion-weighted images, and venous time-of-flight magnetic resonance angiography (TOF MRA) for the evaluation of the venous sinuses. Surgical findings, as well as clinical and imaging follow-up were used as the standard of reference. The sensitivity and accuracy of MRI for mastoiditis and subperiosteal abscesses was calculated. Results Twenty (87%) of 23 patients had mastoiditis, and 12 (52%) of 23 patients had a subperiosteal abscess in addition to mastoiditis. Mastoiditis and subperiosteal abscesses were identified by MRI in all cases. Sensitivity for mastoiditis was 100%, specificity was 66%, and accuracy was 86%. Sensitivity for subperiosteal abscesses was 100% and accuracy was 100%. Conclusion Multiparametric MRI has high accuracy for mastoiditis and subperiosteal abscesses.
      PubDate: 2014-02-25T06:33:08-08:00
      DOI: 10.1177/2047981614523415|hwp:resource-id:sparr;3/2/2047981614523415
      Issue No: Vol. 3, No. 2 (2014)
  • Mandibular tori as an incidental finding in MRI
    • Authors: Platzek, I; Schubert, M, Sieron, D, Laniado, M.
      Pages: 2047981614 - 2047981614
      Abstract: Tori (singular: torus) are among the most common benign jaw lesions. The magnetic resonance imaging (MRI) characteristics have not been reported yet. We present a 72-year-old patient with mandibular tori, which were detected as an incidental finding on MRI and provide an overview of the imaging features of tori.
      PubDate: 2014-02-25T06:33:08-08:00
      DOI: 10.1177/2047981614522790|hwp:resource-id:sparr;3/2/2047981614522790
      Issue No: Vol. 3, No. 2 (2014)
  • Rare diagnosis of nodular lymphangitis caused by Mycobacterium marinum:
           MDCT imaging findings
    • Authors: Tomas, X; Pedrosa, M, Soriano, A, Zboromyrska, Y, Tudo, G, Garcia, S, Pomes, J.
      Pages: 2047981614 - 2047981614
      Abstract: Mycobacterium marinum is an atypical mycobacterium that usually causes a solitary nodule on the hand ("fish tank granuloma") or less commonly, secondary erythematous channels and nodules spread along lymphatic drainage of the extremity, mimicking sporothricoid skin lesions of nodular lymphangitis. This report presents a case of this rare entity, a nodular lymphangitis caused by Mycobacterium marinum. Multidetector computed tomography (MDCT) imaging was very useful in determining the morphology (cellulitis with a few small subcutaneous nodules and channels) and the extension of the lesion.
      PubDate: 2014-02-25T06:33:08-08:00
      DOI: 10.1177/2047981614523172|hwp:resource-id:sparr;3/2/2047981614523172
      Issue No: Vol. 3, No. 2 (2014)
  • Retroperitoneal fibromatosis presenting as a presacral mass
    • Authors: Kim, Y.-W; Choi, S. J, Jeon, U. B, Choo, K. S.
      Pages: 2047981614 - 2047981614
      Abstract: Aggressive fibromatosis arising from the retroperitoneum is extremely rare. It may occur in association with previous trauma, abdominal surgery, drugs, Gardner’s syndrome, or familial adenomatous polyposis. We report a case of retroperitoneal fibromatosis presenting as a presacral mass with an infiltrating nature, relatively intense enhancement on enhanced computed tomography scanning, and low-signal intensity on T2-weighted magnetic resonance imaging in a patient with no significant medical or surgical history.
      PubDate: 2014-02-25T06:33:08-08:00
      DOI: 10.1177/2047981614523760|hwp:resource-id:sparr;3/2/2047981614523760
      Issue No: Vol. 3, No. 2 (2014)
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