Metaplastic breast cancer is a rare subtype of breast cancer that is histologically heterogeneous, being composed of both sarcomatous and epithelial components. It presents as rapidly growing palpable masses. Incidence of nodal metastasis is low, as compared to intraductal carcinoma, but it has a high metastatic potential and more chances of local recurrence. Many different pathological classif...

We describe here a female patient who presented with a breast mass and giant abdominal mass. Fine needle aspiration cytology of the breast mass and histological examination after modified radical mastectomy confirmed metaplastic carcinoma of the breast. The epithelial components were formed by infiltrating ductal carcinoma with poor differentiation, and the sarcomatous components were formed by...

GLM – General Linear Model Figure 2. Representative results from five patients. All panels: Top to bottom: mediolateral, coronal, craniocaudal sections; left:MR, right: DOT – beta values for the tumor model function. (a) 53 y, 33-mm IDC (model #1); (b) 77 y, 19-mm metaplastic CA (model #2); (c) 27 y, 22-mm fibroadenoma; (d) 37 y, 22-mm IDC; (e) 68 y, 16-mm IDC. 3 / 6 10 / 14 Sum 1 / 1 Melanoma ...

BACKGROUND AND OBJECTIVES Metaplastic carcinomas of the breast are rare neoplasms. The purpose of the present study is to better characterize the clinical course, treatment, and prognostic factors of metaplastic breast carcinomas. METHODS Data of 14 patients with metaplastic breast carcinoma were retrospectively reviewed. The follow-up period ranged from 2 months to 10 years, 10 months (media...

Squamous cell differentiation (SCD) may occur in papillary thyroid carcinoma (PTC) only at metastatic sites. We have studied cytokeratin CK5/6 and P63 along with TTF1 (thyroid transcription factor 1)  and B-Raf (V-Raf murine sarcoma viral oncogene homolog B1) immunohistochemical expression in neck lymph node metastases of thyroid PTC showing SCD. The patient (21-years) presented wit...

Correction After the publication of this work [1], we found that there were some mistakes in calculating the percentage of composition in Table 1 (1). Clinicopathologic characteristics of breast cancer subtypes. We are therefore providing the revised Table 1, with the updated data for rows ‘Mucinous carcinoma’, ‘Metaplastic carcinoma’ and ‘Others’. In the sub-content of Table 1, ‘Histological t...

A metastatic rat mammary carcinoma cell line, BC1, contains cells that have retained epithelial differentiation characteristics and metaplastic cells that have undergone an epithelial-mesenchymal transition. These two subpopulations cooperate to degrade collagen. We have used novel PCR assays to quantitate, for the first time, absolute levels of the mRNAs encoding matrix metalloproteinases (MMP...

This pictorial essay presents the common radiological (mammography and/or ultrasonography) and pathological findings observed in unusual malignant breast lesions, which include well-differentiated subtypes of invasive ductal carcinoma not otherwise specified (tubular, mucinous, papillary, and medullary carcinomas), metaplastic carcinoma, and metastases. This study also includes ...

Metaplastic breast carcinoma, a rare tumor composed of adenocarcinomatous and nonglandular growth patterns, is characterized by a propensity for distant metastases and resistance to standard anticancer therapies. We sought confirmation that this tumor is a basal-like breast cancer, expressing epidermal growth factor receptor (EGFR) and stem cell factor receptor (KIT). EGFR activating mutations ...