CT features for diagnosing acute torsion of uterine subserosal leiomyoma
| Autor: | Nobuyuki Takeyama, Nobuyuki Ohike, Noritaka Seino, Kumi Hatano, Toshi Hashimoto, Takehiko Gokan, Masanori Hirose, Yoshimitsu Ohgiya, Akihiko Sekizawa, Kumiko Ishizuka, Shingo Miyamoto, Jiro Munechika |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Contrast enhancement Uterus Contrast Media 030218 nuclear medicine & medical imaging Computed tomographic 03 medical and health sciences 0302 clinical medicine Ascites medicine Humans Radiology Nuclear Medicine and imaging Aged Aged 80 and over Uterine leiomyoma Leiomyoma business.industry Torsion (gastropod) Middle Aged medicine.disease body regions Radiographic Image Enhancement medicine.anatomical_structure 030220 oncology & carcinogenesis Uterine Neoplasms Female sense organs medicine.symptom Nuclear medicine business Tomography X-Ray Computed Calcification |
| Zdroj: | Japanese journal of radiology. 36(3) |
| ISSN: | 1867-108X |
| Popis: | To evaluate the usefulness of computed tomographic (CT) features for identifying acute torsion of uterine subserosal leiomyoma (USL). We analyzed contrast-enhanced CT examinations of 7 USLs with torsion and 44 USLs without torsion. Two radiologists evaluated the CT features, which consisted of poor contrast enhancement inside the USL, thin rim enhancement around the USL, calcification within the USL, a beak sign between the uterus and USL, fan-shaped poor contrast enhancement in the uterus area adjacent to the USL (dark fan sign), and ascites. We analyzed the frequencies of these CT features in the USLs with versus without torsion using Fisher’s exact test. The respective frequencies of CT features in USLs with and without torsion were as follows: poor contrast enhancement, 86 and 5% (P = 0.001); thin rim enhancement, 71 and 9% (P = 0.001); calcification, 29 and 18% (P = 0.61); beak sign, 57 and 86% (P = 0.10); dark fan sign, 57 and 0% (P = 0.001); and ascites, 100 and 20% (P = 0.01). The CT features of poor contrast enhancement, thin rim enhancement, and dark fan sign are valuable for identifying acute torsion of USL. |
| Databáze: | OpenAIRE |
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