Head and Neck Imaging
MRI Findings of Invasive Micropapillary Carcinoma with Clinical and Pathologic Features*
Author:CHEN Yuan-yuan, ZHANG Yan, WANG Xia,et al.
affiliation:Department of Radiology, Guangdong Women's and Children's Hospital, Guangzhou 510010, Guangdong Province, China
PDFAbstract
Objective The purpose of this study is to present imaging findings of invasive micropapillary carcinoma(IMPC) with clinical and pathologic correlation. Methods MRI findings and pathologic types of IMPC in 21 patients were reviewed retrospectively in our institution from January 2012 to July 2016. MRI appearences were assessed using the American College of Radiology's BI-RADS lexicon. Results The histologic types of IMPC were invasive ductal carcinoma with micropapillary features, 4 cases combining with ductal carcinoma in situ(DCIS), 1 case with mucinous breast carcinoma, 1 case with neuroendocrine differentiation, 1 case with breast atypical hyperplasia, 14 cases with axillary lymph node metastases,and 12 cases with lymphovascular invasion.With MR, dynamic enhancement, 18 patients of breast masses presented mass enhancement, iregular shape, iregular or spiculated margin, the enhancement degrees of the masses edge was higher than that of the mass inner, all masses showed washout type of TIC. 4 patients of breast masses presented non-mass enhancement, 2 presented segmental distribution and 2 presented regional distribution with heterogeneous internal enchancement, and 3 washout and 1 plateau type of TIC. Accompaning signs included crater nipple(6 cases), skin thickening and front fascia pectoralis muscle pulled(11 cases). MRI showed 17 cases of suspicious lymph node metastasis, 12 cases of lymph node metastasis confirmed by pathology, the diagnostic accuracy rate was 70.5%. Conclusion IMPC is a distinct pathologic type of invasive ductal carcinoma. On MRI,the features of IMPC were highly suggestive of malignance associated with lymphovascular invasion and axillary lymph node metastases.
【Keyword】Invasive Micropapillary Carcinoma; Invasive Inductal Carcinoma; Breast; Magnetic Resonance Imaging; Pathology
【Chart number】R737.9;R445.2
【Document Identification Number】A
【DOI】 10.3969/j.issn.1672- 5131.2018.04.025
Chinese journal of CT and MRI
th16Volume, th 4 Issue
2018Year04Month
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