Ray Kimberly M, Munir Reema, Wisner Dorota J, Azziz Ania, Holland Belinda Chang, Kornak John, Joe Bonnie N
University of California, San Francisco, Department of Radiology and Biomedical Imaging, 1600 Divisadero St., Room C250, Mail Box 1667, San Francisco, CA 94115.
Hill Medical Corporation, 625 S. Fair Oaks Avenue, Suite 140, Pasadena, CA 91106.
Clin Imaging. 2015 Sep-Oct;39(5):791-3. doi: 10.1016/j.clinimag.2015.05.011. Epub 2015 May 27.
To evaluate the prevalence of internal mammary lymph nodes (IMLNs) on breast magnetic resonance imaging (MRI) in a screening population.
We retrospectively reviewed 92 consecutive screening breast MRI exams. Logistic regression was performed to ascertain the risk of IMLNs in cancer-free subjects and to determine whether the risk varies with age.
IMLNs were present in 48.9% of patients. Mean node size was 4 mm (range, 3-10 mm). The prevalence of IMLNs was not related to age. No patients developed breast cancer after a mean follow-up of 3 years.
Subcentimeter IMLNs are common incidental findings at screening breast MRI.
评估筛查人群中乳腺磁共振成像（MRI）上内乳淋巴结（IMLNs）的患病率。
我们回顾性分析了连续92例乳腺MRI筛查检查。进行逻辑回归以确定无癌受试者中IMLNs的风险，并确定该风险是否随年龄变化。
48.9%的患者存在IMLNs。平均淋巴结大小为4毫米（范围3 - 10毫米）。IMLNs的患病率与年龄无关。平均随访3年后，无患者发生乳腺癌。
在乳腺MRI筛查中，亚厘米级IMLNs是常见的偶然发现。
