Journal of Pathology and Translational Medicine

Kyeongmee Park

3 Articles

Prognostic Significance of a Micropapillary Pattern in Pure Mucinous Carcinoma of the Breast: Comparative Analysis with Micropapillary Carcinoma: Hyun-Jung Kim, Kyeongmee Park, Jung Yeon Kim, Guhyun Kang, Geumhee Gwak, Inseok Park; J Pathol Transl Med. 2017;51(4):403-409. Published online June 9, 2017; DOI: https://doi.org/10.4132/jptm.2017.03.18

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Background
Mucinous carcinoma of the breast is an indolent tumors with a favorable prognosis; however, micropapillary features tend to lead to aggressive behavior. Thus, mucinous carcinoma and micropapillary carcinoma exhibit contrasting biologic behaviors. Here, we review invasive mucinous carcinoma with a focus on micropapillary features and correlations with clinicopathological factors.
Methods
A total of 64 patients with invasive breast cancer with mucinous or micropapillary features were enrolled in the study. Of 36 pure mucinous carcinomas, 17 (47.2%) had micropapillary features and were termed mucinous carcinoma with micropapillary features (MUMPC), and 19 (52.8%) had no micropapillary features and were termed mucinous carcinoma without micropapillary features. MUMPC were compared with 15 invasive micropapillary carcinomas (IMPC) and 13 invasive ductal and micropapillary carcinomas (IDMPC).
Results
The clinicopathological factors of pure mucinous carcinoma and MUMPC were not significantly different. In contrast to IMPC and IDMPC, MUMPC had a low nuclear grade, lower mitotic rate, higher expression of hormone receptors, negative human epidermal growth factor receptor 2 (HER2) status, lower Ki-67 proliferating index, and less frequent lymph node metastasis (p < .05). According to univariate analyses, progesterone receptor, HER2, T-stage, and lymph node metastasis were significant risk factors for overall survival; however, only T-stage remained significant in a multivariate analysis (p < .05).
Conclusions
In contrast to IMPC and IDMPC, the micropapillary pattern in mucinous carcinoma does not contribute to aggressive behavior. However, further analysis of a larger series of patients is required to clarify the prognostic significance of micropapillary patterns in mucinous carcinoma of the breast.

Citations

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Mucinous carcinoma with micropapillary features is morphologically, clinically and genetically distinct from pure mucinous carcinoma of breast
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Heqing Zhang, Li Qiu, Yulan Peng
World Journal of Surgical Oncology.2018;[Epub] CrossRef
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Geok Hoon Lim, Zhiyan Yan, Mihir Gudi
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Inflammatory Pseudotumor-like Follicular Dendritic Cell Tumor of the Spleen with Extensive Histiocytic Granulomas and Necrosis: A Case Report and Literature Review: Hyun-Jung Kim, Ji Eun Kim, Gu-Hyun Kang, Jung Yeon Kim, Kyeongmee Park; Korean J Pathol. 2013;47(6):599-602. Published online December 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.6.599

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ThinPrep Cytological Findings of Desmoplastic Small Round Cell Tumor with Extensive Glandular Differentiation: A Case Study: Hyun-Jung Kim, Byeong Seok Sohn, Ji-Eun Kwon, Jeong Yeon Kim, Kyeongmee Park; Korean J Pathol. 2013;47(2):182-187. Published online April 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.2.182

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Abstract PDF

Desmoplastic small round cell tumor (DSRCT) is a rare and highly aggressive neoplasm. The cytological diagnosis of this tumor has only been reported in a few cases. In most of these cases, the diagnosis was made using fine-needle aspiration cytology. Most DSRCTs resemble disseminated carcinomatoses in their clinical manifestation as well as cytomorphologically, even in young-adult patients. These authors report a case of using peritoneal-washing and pleural-effusion ThinPrep cytology to diagnose DSRCT, with extensive glandular differentiation and mucin vacuoles. We found that fibrillary stromal fragment, clinical setting, and adjunctive immunocytochemical staining were most helpful for avoiding misdiagnosis.

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