نتایج جستجو برای: ductal carcinoma in situ dcis
تعداد نتایج: 17049159 فیلتر نتایج به سال:
We report magnetic resonance (MR) imaging findings of ductal carcinoma in situ (DCIS) within a fibroadenoma in a 42-year-old woman. Dynamic MR imaging revealed the mass to have 2 components with different kinetics. A nodular area within the mass showed faster initial enhancement followed by earlier washout and was histologically proven to be DCIS. Dynamic MR imaging reflected differences in vas...
The computational model presented in this paper focuses on modeling ductal carcinoma in situ (DCIS), which is the most commonly detected preinvasive form of breast cancer. The model aims to understand the biological mechanisms and resultant growth dynamics of DCIS. The cellular automaton model based on observed phenotypic characteristics of DCIS emphasize the important role of contact inhibitio...
To investigate immune escape during breast tumor progression, we analyzed the composition of leukocytes in normal breast tissues, ductal carcinoma in situ (DCIS), and invasive ductal carcinomas (IDC). We found significant tissue and tumor subtype-specific differences in multiple cell types including T cells and neutrophils. Gene expression profiling of CD45+CD3+ T cells demonstrated a decrease ...
Background and Purpose : The pattern and distribution of p63 expression as a myoepithelial/basal stem cell marker can be different between atypical ductal hyperplasia (ADH), ductal carcinoma in situ (DCIS) and invasive ductal carcinoma (IDC) and may denote basal phenotype of breast ductal carcinoma. CK8/18 is a luminal marker and may indicate a luminal phenotype of IDC and its expression in ADH...
Mixed ductal-lobular carcinomas (MDLs) show both ductal and lobular morphology, and constitute an archetypal example of intratumoural morphological heterogeneity. The mechanisms underlying the coexistence of these different morphological entities are poorly understood, although theories include that these components either represent 'collision' of independent tumours or evolve from a common anc...
چکیده: مقدمه : سرطان پستان یکی از کشنده ترین سرطان ها در بین زنان میباشد . این نوع سرطان یک بیماری به شدت ناهمگن است وشامل LCIS ،(Lobular carcinoma in situ) ،(Ductal carcinoma in situ) DCIS و کارسینوم مهاجم میشود. شناسایی راه های مولکولی می تواند در پیشگیری و راه های درمان کمک کننده باشد در این مطالعه بمنظور مسیر Development در این سرطان، بیان دو ژن CDX1 ,2بررسی گردید . روش کار :در این مطالعه د...
The PIK3 signaling pathway has been identified as one of the most important and most frequently mutated pathways in breast cancer. Somatic mutations in the catalytic subunit of PIK3CA have been found in a significant fraction of breast carcinomas, and it has been proposed that mutant PIK3CA plays a role in tumor initiation. However, the majority of primary human tumors analyzed for genetic alte...
Background: Considering highly selected patients with ductal carcinoma in situ (DCIS), active surveillance is a valid alternative to surgery. Our study aimed show the reliability of post-biopsy complete lesion removal, documented by mammogram, as additional criterion select these patients. Methods: A total 2173 vacuum-assisted breast biopsies (VABBs) DCIS were reviewed. Surgery was performed al...
BACKGROUND Ductal carcinoma in situ (DCIS) of the breast has been diagnosed increasingly since the advent of mammography. However, the natural history of these lesions remains uncertain. Ductal carcinoma in situ of the breast does not represent a single entity but a heterogeneous group with histologic and clinical differences. The histologic subtype of DCIS seems to have an influence on its bio...
BACKGROUND Risk factors associated with invasive breast cancer are well documented, but those associated with breast carcinoma in situ are not well defined. METHODS We conducted a population-based, case-control study among female residents of Connecticut to identify risk factors for breast carcinoma in situ. Case patients, diagnosed with ductal carcinoma in situ (DCIS) (n = 875) or lobular ca...
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