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| 篇名 |
Mucinous Neuroendocrine Carcinoma of the Breast: Report of a Case |
| 作者 |
Chiew-Loon Koo, Chung-Chin Yao, Da-Ming Yeh, Wan-Ru Chao, Han Chang |
| 卷期/出版年月 |
42卷4期 (2009/8) |
| 頁次 |
224-229 |
| 摘要 |
We report a case of well-differentiated mucinous neuroendocrine carcinoma in an
aged woman who presented with a right breast lump. The mammogram revealed a
dense, lobulated mass with a circumscribed margin. The core needle biopsy was
initially misdiagnosed as an invasive ductal carcinoma, and modified radical
mastectomy was performed later. A detailed histologic examination of the whole
specimen revealed a solid and expansile growth pattern of epithelial cells with a
trabecular arrangement. Almost all the tumor cells contained intracellular mucin,
and some tumor cell clusters floated in a large amount of extracellular mucus. The
differential diagnoses of primary neuroendocrine carcinoma of breast include
mucinous carcinoma, invasive ductal carcinoma, invasive lobular carcinoma, and
metastatic neuroendocrine carcinoma. The immunohistochemical studies
demonstrated that the majority of tumor cells were immunoreactive for
neuroendocrine markers that included chromogranin A, synaptophysin and neuronspecific
enolase. Recognition of the neuroendocrine (NE) carcinoma showing a solid
trabecular growth pattern with florid intracellular and extracellular mucin
production is occasionally one of the most challenging diagnoses in small biopsy.
There is no standard therapy for patients with NE carcinomas, however, surgery is
regarded as the treatment of choice. The surgical protocol includes lumpectomy,
axillary lymph node dissection and adjuvant radiation therapy or modified radical
mastectomy based primarily on the tumor grade, size and stage. The
chemotherapeutic agents or hormone therapy may be given accordingly. |
| 關鍵詞 |
breast cancer, mucinous neuroendocrine carcinoma, chromogranin A |
| 分類 |
Case Report |
|
