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...

Ductal carcinoma in situ (DCIS; intraductal carcinoma) is a noninvasive breast cancer originating from the cells that line the mammary ducts. Patients with DCIS can be asymptomatic at the time of presentation (radiographic findings on mammogram) or present with symptoms such as a palpable mass or nipple discharge [1]. We present an unusual case of DCIS in a 40 year old woman with recent palpabl...

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 the relationships of specific allelic losses to progression and histological grade of ductal carcinoma in situ (DCIS) of the breast, we studied PCR-amplified microsatellite markers on ten chromosomal arms in 41 cases of DCIS without synchronous invasive cancer. For all chromosomal arms combined, the number of allelic losses was significantly greater in lesions of intermediate or ...

Incidence rates of ductal carcinoma in situ (DCIS) and lobular carcinoma in situ (LCIS) have increased rapidly over the past several decades largely due to the increased use of mammography. However, recent data from 1987 to 1999 indicate that invasive ductal carcinoma incidence rates have remained essentially constant, whereas rates of invasive lobular carcinoma have increased 65%, with greater...

AIMS Radiation Therapy Oncology Group 98-04 sought to identify women with ‘good risk’ ductal carcinoma in situ (DCIS) who receive no significant benefit from radiation. Enrolment criteria excluded close or positive margins and grade 3 disease. To ensure reproducibility in identifying good risk pathology, an optional web based teaching tool was developed and a random sampling of 10% of submitted...

ABSTRACT BACKGROUND We evaluated the presence of ductal carcinoma in situ (DCIS) in core needle biopsies (CNB) from invasive ductal lesions. METHODS Retrospective study, which analyzed 90 cases of invasive ductal carcinoma lesions. The percentage of DCIS was quantified in each specimens obtained from CNB, which were compared to the surgical specimens. CNB and surgical specimens were evalua...

Because of the wider use of screening mammography, ductal carcinoma-in-situ, or DCIS, once rare, is now diagnosed with increasing frequency. Important questions remain unresolved regarding the natural history, classification, and management of DCIS. Many physicians have assumed that DCIS is diffuse and regularly progresses to invasive cancer; therefore, they routinely recommend mastectomy. Howe...

JNCI | Editorials 569 Some medical decisions are fairly straightforward. If you break a leg, the recommended treatment is a cast, elevation, and crutches. But if your breast biopsy leads to a diagnosis of ductal carcinoma in situ (DCIS), the treatment path is much less clear. A diagnosis of DCIS brings uncertainty. With the introduction of population-wide screening mammography, radiologists hav...

BACKGROUND A significant number of patients who are initially diagnosed with pure DCIS will harbor missed or occult invasive disease at their definitive surgery. To provide more accurate staging information and to avoid a second operation, some investigators believe that SLN mapping should be performed in DCIS patients. The role of SLN biopsy after neoadjuvant chemotherapy in patients with adva...