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Kelly C, Fitzpatrick P, Quinn C, Flanagan F, Connors A, Larke A, Mooney T, Kennedy M, Sheehan M, Bennett MW, Brodie C, O'Doherty A. Screen-detected ductal carcinoma in situ, 2008-2020: An observational study. J Med Screen 2022; 29:172-177. [PMID: 35341364 DOI: 10.1177/09691413221090739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The purpose of this study was to evaluate the grade distribution of screen-detected ductal carcinoma in situ (DCIS) diagnosed in Ireland, in the context of the clinical trials currently underway to determine if active surveillance is a feasible management option for low-risk DCIS. SETTING BreastCheck is the national breast screening programme in Ireland, offering screening to women aged 50 to 69 every two years. METHODS This study was a secondary analysis of data collected by BreastCheck on all screen-detected DCIS diagnosed in the 12 years of nationwide screening. Incidence and detection rates were calculated. Descriptive analysis of the cases was performed and, for comparative analysis, grade of DCIS was analysed as a binary variable (high vs. low/intermediate) in keeping with the inclusion criteria for active surveillance trials. Analysis was performed in IBM Statistical Package for Social Sciences, version 26. RESULTS Between 2008 and 2020, 2240 women were diagnosed with DCIS through BreastCheck; 876 (39.1%) were low/intermediate-grade. The overall incidence rate has remained relatively stable during this period. Women with low/intermediate-grade DCIS were younger than women with high-grade DCIS (56 (interquartile range: 56-61) years v 57 (interquartile range: 53-61) years; p < 0.001). They were also more likely to have been diagnosed at an initial screening episode compared with those who had high-grade lesions (42.5% v 29.0%; p < 0.001). CONCLUSION If current clinical trials recommend active surveillance as a feasible option for DCIS, up to 40% of women with screen-detected DCIS may be eligible. These women are younger and often diagnosed on initial screening episode, so may require longer active follow-up.
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Affiliation(s)
- Caitriona Kelly
- School of Public Health, Physiotherapy and Sports Science, 8797University College Dublin, Dublin, Ireland.,Department of Public Health HSE North East, Navan, Ireland
| | - Patricia Fitzpatrick
- School of Public Health, Physiotherapy and Sports Science, 8797University College Dublin, Dublin, Ireland.,155307National Screening Service, Dublin, Ireland
| | - Cecily Quinn
- BreastCheck, 155307National Screening Service, Dublin, Ireland
| | | | - Alissa Connors
- BreastCheck, 155307National Screening Service, Dublin, Ireland
| | - Aideen Larke
- BreastCheck, 155307National Screening Service, Dublin, Ireland
| | | | - Maria Kennedy
- BreastCheck, 155307National Screening Service, Dublin, Ireland
| | | | - Michael W Bennett
- 155307National Screening Service, Dublin, Ireland.,Department of Pathology, 57983Cork University Hospital, Cork, Ireland
| | - Caroline Brodie
- BreastCheck, 155307National Screening Service, Dublin, Ireland.,Department of Anatomic Pathology, 58040Galway University Hospital and National University of Ireland, Galway, Ireland
| | - Ann O'Doherty
- BreastCheck, 155307National Screening Service, Dublin, Ireland
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Lee SE, Kim HY, Yoon JH, Kim EK, Kim JY, Kim MJ, Kim GR, Park YV, Moon HJ. Chronological Trends of Breast Ductal Carcinoma In Situ: Clinical, Radiologic, and Pathologic Perspectives. Ann Surg Oncol 2021; 28:8699-8709. [PMID: 34196861 DOI: 10.1245/s10434-021-10378-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 06/11/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Because no prior studies have evaluated the chronological trends of ductal carcinoma in situ (DCIS) despite the increasing number of surgeries performed for DCIS, this study analyzed how the clinical, radiologic, and pathologic characteristics of DCIS changed during a 10-year period. METHODS Of 7123 patients who underwent primary breast cancer surgery at a single institution from 2006 to 2015, 792 patients with pure DCIS were included in this study. The chronological trends of age, symptoms, method for detecting either mammography or ultrasonography, tumor size, nuclear grade, comedonecrosis, and molecular markers were calculated using Poisson regression for all patients and asymptomatic patients. RESULTS During 10 years, DCIS surgery rates significantly increased (p < 0.001). Despite the high percentage of DCIS detected on mammography, the detection rate for DCIS by mammography significantly decreased (97.3% in 2006 to 67.6% in 2015; p = 0.025), whereas the detection rate by ultrasound significantly increased (2.7% to 31.0%; p < 0.001). Conservation surgery rates (odds ratio [OR], 1.058), low-to-intermediate nuclear grade rates (OR, 1.069), and the absence of comedonecrosis (OR, 1.104) significantly increased over time (all p < 0.05). Estrogen receptor (ER) negativity (OR, 0.935) and human epidermal growth factor receptor 2 (HER2) positivity rates (OR, 0.953) significantly decreased (all p < 0.05). The same trends were observed for the 613 asymptomatic patients. CONCLUSION The rate of DCIS detected on ultrasound only significantly increased during 10 years. Low-to-intermediate nuclear grade rates significantly increased, whereas ER negativity and HER2 positivity rates significantly decreased during the same period. These findings suggest that DCIS detected on screening ultrasound is less aggressive than DCIS detected on mammography.
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Affiliation(s)
- Si Eun Lee
- Department of Radiology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
| | - Ha Yan Kim
- Biostatistics Collaboration Unit, Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Hyun Yoon
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Eun-Kyung Kim
- Department of Radiology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
| | - Jee Ye Kim
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Min Jung Kim
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Ga Ram Kim
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Youngjean Vivian Park
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hee Jung Moon
- Department of Radiology, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea.
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3
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[Diagnosis of breast diseases in a certified breast center]. Radiologe 2021; 61:137-149. [PMID: 33404685 DOI: 10.1007/s00117-020-00791-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2020] [Indexed: 10/22/2022]
Abstract
The beginning of the 21st century has seen immense improvements in the quality of diagnosis and treatment of breast cancer due to several, simultaneous developments. In particular, the introduction of a certification program from the German Cancer Society based on level III guidelines has enhanced the transparency and quality of treatment of breast diseases for all actors. As a result, patients have benefited from intensified cooperation especially between core disciplines in breast disease, gynecology, pathology, and radiology. The standardized and synoptic reading of multiple diagnostic modalities has enabled precise sampling of histologic specimen, which has improved prognosis and the successful individualization of therapy. In this article the benefits of breast cancer diagnosis and therapy in a certified breast center are illustrated using four case examples.
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Ponti A, Ronco G, Lynge E, Tomatis M, Anttila A, Ascunce N, Broeders M, Bulliard JL, Castellano I, Fitzpatrick P, Frigerio A, Hofvind S, Májek O, Segnan N, Taplin S. Low-grade screen-detected ductal carcinoma in situ progresses more slowly than high-grade lesions: evidence from an international multi-centre study. Breast Cancer Res Treat 2019; 177:761-765. [PMID: 31250357 DOI: 10.1007/s10549-019-05333-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 06/18/2019] [Indexed: 12/27/2022]
Abstract
PURPOSE Nuclear grade is an important indicator of the biological behaviour of ductal carcinoma in situ (DCIS). De-escalation of treatment has been suggested for low-grade DCIS. Our aim is to estimate the relative rate of progression of DCIS by nuclear grade by analysing the distribution of nuclear grade by detection at initial or subsequent screening. METHODS We asked International Cancer Screening Network sites to complete, based on their screening and clinical databases, an aggregated data file on DCIS detection, diagnosis and treatment. RESULTS Eleven screening programs reported 5068 screen-detected pure DCIS in nearly 7 million screening tests in women 50-69 years of age. For all programs combined, low-grade DCIS were 20.1% (range 11.4-31.8%) of graded DCIS, intermediate grade 31.0% and high grade 48.9%. Detection rates decreased more steeply from initial to subsequent screening in low compared to high-grade DCIS: the ratios of subsequent to initial detection rates were 0.39 for low grade, 0.51 for intermediate grade, and 0.75 for high grade (p < 0.001). CONCLUSIONS These results suggest that the duration of the preclinical detectable phase is longer for low than for high-grade DCIS. The findings from this large multi-centre, international study emphasize that the management of low-grade DCIS should be carefully scrutinized in order to minimize overtreatment of screen-detected slow-growing or indolent lesions. The high variation by site in the proportion of low grade suggests that further pathology standardization and training would be beneficial.
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Affiliation(s)
- Antonio Ponti
- CPO Piemonte, AOU Città della Salute e della Scienza, Via Cavour 31, 10123, Torino, Italy.
| | - Guglielmo Ronco
- CPO Piemonte, AOU Città della Salute e della Scienza, Via Cavour 31, 10123, Torino, Italy
| | - Elsebeth Lynge
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Mariano Tomatis
- CPO Piemonte, AOU Città della Salute e della Scienza, Via Cavour 31, 10123, Torino, Italy
| | - Ahti Anttila
- Mass Screening Registry, Finnish Cancer Registry, Helsinki, Finland
| | - Nieves Ascunce
- Breast Cancer Screening Program, Public Health and Labour Institute of Navarra, Pamplona, Spain
| | - Mireille Broeders
- Dutch Expert Centre for Screening and Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Jean-Luc Bulliard
- Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Isabella Castellano
- Unit of Pathology, Department of Medical Sciences, University of Torino, Torino, Italy
| | | | - Alfonso Frigerio
- Breast Cancer Screening Reference Centre, AOU Città della Salute e della Scienza, Torino, Italy
| | | | - Ondřej Májek
- Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Nereo Segnan
- CPO Piemonte, AOU Città della Salute e della Scienza, Via Cavour 31, 10123, Torino, Italy
| | - Stephen Taplin
- Centre for Global Health, National Cancer Institute, Rockville, MD, USA
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Gooch JC, Chun J, Kaplowitz E, Kurz E, Guth A, Lee J, Schnabel F. Breast Density in a Contemporary Cohort of Women With Ductal Carcinoma In Situ (DCIS). Ann Surg Oncol 2019; 26:3472-3477. [PMID: 31147991 DOI: 10.1245/s10434-019-07479-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND Mammographic breast density (MBD) is an independent risk factor for breast cancer. Information regarding the relationship of MBD and breast cancer biology in women with ductal carcinoma in situ (DCIS) is currently lacking. This study aimed to examine the clinicopathologic characteristics of DCIS in women stratified by MBD. METHODS A retrospective review was performed to identify women with pure DCIS who underwent preoperative mammography between 2010 and 2018. Clinicopathologic and demographic data were collected. For the purpose of analysis, MBD was categorized as "non-dense" (Breast Imaging-Reporting and Data System [BI-RADS] density categories A and B) or "dense" (BI-RADS C and D) according to its identification in radiology reports. RESULTS Of 3227 patients with a breast cancer diagnosis enrolled in the institutional Breast Cancer Database during the study period, 658 (20%) had pure DCIS. Of these 658 patients, 42% had non-dense breasts, and 58% had dense breasts. Most lesions were non-palpable (92%) and detected by mammography (84%). Patients with dense breasts were more likely to be younger at the time of diagnosis (p < 0.001), premenopausal (p < 0.001), and Asian (p = 0.018), and to have higher-grade disease (p = 0.006; Table 2). Family history, BRCA status, parity, mammogram frequency, palpability, method of presentation, lesion size, hormone receptor status, comedo histology, and recurrence did not differ significantly between the two groups (Table 1). The median follow-up period was 7.1 years. CONCLUSION Women with pure DCIS and higher MBD are more likely to be younger at the time of diagnosis, premenopausal, and Asian, and to present with higher-grade disease. Further research on the relationship of age, MBD, and tumor biology in DCIS is warranted.
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Affiliation(s)
- Jessica C Gooch
- Division of Breast Surgical Oncology, Department of Surgery, New York University Langone Health, New York, USA.,Division of Surgical Oncology, Department of Surgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Jennifer Chun
- Division of Breast Surgical Oncology, Department of Surgery, New York University Langone Health, New York, USA
| | - Elianna Kaplowitz
- Division of Breast Surgical Oncology, Department of Surgery, New York University Langone Health, New York, USA
| | - Emma Kurz
- New York University School of Medicine, New York, USA
| | - Amber Guth
- Division of Breast Surgical Oncology, Department of Surgery, New York University Langone Health, New York, USA
| | - Jiyon Lee
- Department of Radiology, New York University Langone Health, New York, USA
| | - Freya Schnabel
- Division of Breast Surgical Oncology, Department of Surgery, New York University Langone Health, New York, USA.
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Androgen Receptors in Resected Ductal Carcinoma In Situ of Breast: Novel Insights With Possible Implications for Testing and Targeted Endocrine Chemoprevention Trials. Appl Immunohistochem Mol Morphol 2019; 27:373-377. [PMID: 29489512 DOI: 10.1097/pai.0000000000000625] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Mammary ductal carcinoma in situ (DCIS) is classically treated by combinations of excision, radiation, and endocrine therapy, based upon the specific needs of individual patients. Estrogen receptor (ER) status is generally assessed by immunohistochemistry (IHC) in newly diagnosed cases of DCIS, and endocrine therapy in this setting is thought to be chemopreventive. The potential impact of androgens on mammary carcinogenesis has been studied in recent years, and several authors have proposed androgen receptor (AR) IHC testing and targeted antiandrogenic therapy in patients with locally advanced or metastatic triple-negative invasive breast cancer (ie, negative for ER and progesterone receptor and HER-2). Very little has been published on AR in DCIS. We report results of AR IHC on archival tissue blocks from 221 adult female patients, each of whom underwent definitive breast resection of DCIS. Of the 221 cases, 72 (33%) were shown to express AR in their DCIS at or above the 10% threshold often used for invasive carcinoma. AR expression was seen in all grades of DCIS. Of the 72 positive AR cases, 21 (29%) were ER negative, corresponding to 10% (21/221) of all patients. The majority of the AR-positive cases were high grade, and the most common histologic subtype in this subset was a solid growth pattern with apocrine features. Early data from clinical trials evaluating AR antagonists in invasive/metastatic triple-negative breast cancer suggest that some patients may benefit from androgen blockade. IHC testing and potential clinical trials of AR antagonists for chemoprevention in patients with AR-positive and ER-negative DCIS could be considered.
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van Dooijeweert C, van Diest PJ, Willems SM, Kuijpers CCHJ, Overbeek LIH, Deckers IAG. Significant inter- and intra-laboratory variation in grading of ductal carcinoma in situ of the breast: a nationwide study of 4901 patients in the Netherlands. Breast Cancer Res Treat 2018; 174:479-488. [PMID: 30539380 PMCID: PMC6422994 DOI: 10.1007/s10549-018-05082-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 12/03/2018] [Indexed: 11/23/2022]
Abstract
Purpose A considerable part of ductal carcinoma in situ (DCIS) lesions may never progress into invasive breast cancer. However, standard treatment consists of surgical excision. Trials aim to identify a subgroup of low-risk DCIS patients that can safely forgo surgical treatment based on histologic grade, which highlights the importance of accurate grading. Using real-life nationwide data, we aimed to create insight and awareness in grading variation of DCIS in daily clinical practice. Methods All synoptic pathology reports of pure DCIS resection specimens between 2013 and 2016 were retrieved from PALGA, the nationwide Dutch Pathology Registry. Absolute differences in proportions of grade I-III were visualized using funnel plots. Multivariable analysis was performed by logistic regression to correct for case-mix, providing odds ratios and 95% confidence intervals for high-grade (III) versus low-grade (I–II) DCIS. Results 4952 DCIS reports from 36 laboratories were included, of which 12.5% were reported as grade I (range 6.1–24.4%), 39.5% as grade II (18.2–57.6%), and 48.0% as grade III (30.2–72.7%). After correction for case-mix, 14 laboratories (38.9%) reported a significantly lower (n = 4) or higher (n = 10) proportion of high-grade DCIS than the reference laboratory. Adjusted ORs (95%CI) ranged from 0.52 (0.31–0.87) to 3.83 (1.42–10.39). Significant grading differences were also observed among pathologists within laboratories. Conclusion In this cohort of 4901 patients, we observed substantial inter- and intra-laboratory variation in DCIS grading, not explained by differences in case-mix. Therefore, there is an urgent need for nationwide standardization of grading practices, especially since the future management of DCIS may alter significantly depending on histologic grade. Electronic supplementary material The online version of this article (10.1007/s10549-018-05082-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Carmen van Dooijeweert
- Department of Pathology, University Medical Centre Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands
| | - Paul J van Diest
- Department of Pathology, University Medical Centre Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
| | - Stefan M Willems
- Department of Pathology, University Medical Centre Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands
| | - Chantal C H J Kuijpers
- Department of Pathology, University Medical Centre Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands
| | - Lucy I H Overbeek
- Foundation PALGA (the nationwide network and registry of histo-and cytopathology in the Netherlands), Houten, The Netherlands
| | - Ivette A G Deckers
- Foundation PALGA (the nationwide network and registry of histo-and cytopathology in the Netherlands), Houten, The Netherlands
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Weigel S, Khil L, Hense HW, Decker T, Wellmann J, Heidrich J, Sommer A, Heidinger O, Heindel W. Detection Rates of Ductal Carcinoma in Situ with Biennial Digital Mammography Screening: Radiologic Findings Support Pathologic Model of Tumor Progression. Radiology 2018; 286:424-432. [DOI: 10.1148/radiol.2017170673] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Nipp R, Tramontano AC, Kong CY, Pandharipande P, Dowling EC, Schrag D, Hur C. Disparities in cancer outcomes across age, sex, and race/ethnicity among patients with pancreatic cancer. Cancer Med 2018; 7:525-535. [PMID: 29322643 PMCID: PMC5806100 DOI: 10.1002/cam4.1277] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 09/05/2017] [Accepted: 11/08/2017] [Indexed: 01/14/2023] Open
Abstract
Age, sex, and racial/ethnic disparities exist, but are understudied in pancreatic adenocarcinoma (PDAC). We used the Surveillance, Epidemiology, and End Results (SEER)-Medicare linked database to determine whether survival and treatment disparities persist after adjusting for demographic and clinical characteristics. Our study included PDAC patients diagnosed between 1992 and 2011. We used Cox regression to compare survival across age, sex, and race/ethnicity within early-stage and late-stage cancer subgroups, adjusting for marital status, urban location, socioeconomics, SEER region, comorbidities, stage, lymph node status, tumor location, tumor grade, diagnosis year, and treatment received. We used logistic regression to compare differences in treatment received across age, sex, and race/ethnicity. Among 20,896 patients, 84% were White, 9% Black, 5% Asian, and 2% Hispanic. Median age was 75; 56% were female and 53% had late-stage cancer. Among early-stage patients in the adjusted Cox model, older patient subgroups had worse survival compared with ages 66-69 (HR > 1.1, P < 0.01 for groups >69); no survival differences existed between sexes. Black (HR = 1.1, P = 0.01) and Hispanic (HR = 1.2, P < 0.01) patients had worse survival compared with White. Among late-stage cancer patients, patients over age 84 had worse survival than those aged 66-69 (HR = 1.1, P < 0.01), and males (HR = 1.08, P < 0.01) had worse survival than females; there were no racial/ethnic differences. Older age and minority race/ethnicity were associated with lower likelihood of receiving chemotherapy, radiation, and/or surgery. Age and racial/ethnic disparities in survival outcomes and treatment received exist for PDAC patients; these disparities persist after adjusting for differences in demographic and clinical characteristics.
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Affiliation(s)
- Ryan Nipp
- Department of MedicineDivision of Hematology and OncologyMassachusetts General Hospital Cancer CenterBostonMassachusetts
- Harvard Medical SchoolBostonMassachusetts
| | - Angela C. Tramontano
- Institute for Technology AssessmentMassachusetts General HospitalBostonMassachusetts
| | - Chung Yin Kong
- Harvard Medical SchoolBostonMassachusetts
- Institute for Technology AssessmentMassachusetts General HospitalBostonMassachusetts
| | - Pari Pandharipande
- Harvard Medical SchoolBostonMassachusetts
- Institute for Technology AssessmentMassachusetts General HospitalBostonMassachusetts
| | - Emily C. Dowling
- Institute for Technology AssessmentMassachusetts General HospitalBostonMassachusetts
| | - Deborah Schrag
- Dana‐Farber Cancer InstituteHarvard Medical SchoolBostonMassachusetts
| | - Chin Hur
- Harvard Medical SchoolBostonMassachusetts
- Institute for Technology AssessmentMassachusetts General HospitalBostonMassachusetts
- Gastrointestinal DivisionHarvard Medical SchoolBostonMassachusetts
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The importance of early detection of calcifications associated with breast cancer in screening. Breast Cancer Res Treat 2017; 167:451-458. [PMID: 29043464 PMCID: PMC5790861 DOI: 10.1007/s10549-017-4527-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 09/27/2017] [Indexed: 11/02/2022]
Abstract
PURPOSE The aim of this study was to assess how often women with undetected calcifications in prior screening mammograms are subsequently diagnosed with invasive cancer. METHODS From a screening cohort of 63,895 women, exams were collected from 59,690 women without any abnormalities, 744 women with a screen-detected cancer and a prior negative exam, 781 women with a false positive exam based on calcifications, and 413 women with an interval cancer. A radiologist identified cancer-related calcifications, selected by a computer-aided detection system, on mammograms taken prior to screen-detected or interval cancer diagnoses. Using this ground truth and the pathology reports, the sensitivity for calcification detection and the proportion of lesions with visible calcifications that developed into invasive cancer were determined. RESULTS The screening sensitivity for calcifications was 45.5%, at a specificity of 99.5%. A total of 68.4% (n = 177) of cancer-related calcifications that could have been detected earlier were associated with invasive cancer when diagnosed. CONCLUSIONS Screening sensitivity for detection of malignant calcifications is low. Improving the detection of these early signs of cancer is important, because the majority of lesions with detectable calcifications that are not recalled immediately but detected as interval cancer or in the next screening round are invasive at the time of diagnosis.
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Clark AJ, Petty HR. Identification of lesion subtypes in biopsies of ductal carcinoma in situ of the breast using biomarker ratio imaging microscopy. Sci Rep 2016; 6:27039. [PMID: 27247112 PMCID: PMC4887986 DOI: 10.1038/srep27039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 05/12/2016] [Indexed: 12/19/2022] Open
Abstract
Although epidemiological studies propose aggressive and non-aggressive forms of ductal carcinoma in situ (DCIS), they cannot be identified with conventional histopathology. We now report a retrospective study of human biopsy samples using biomarker ratio imaging microscopy (BRIM). Using BRIM, micrographs of biomarkers whose expression correlates with breast cancer aggressiveness are divided by micrographs of biomarkers whose expression negatively correlates with aggressiveness to create computed micrographs reflecting aggressiveness. The biomarker pairs CD44/CD24, N-cadherin/E-cadherin, and CD74/CD59 stratified DCIS samples. BRIM identified subpopulations of DCIS lesions with ratiometric properties resembling either benign fibroadenoma or invasive carcinoma samples. Our work confirms the existence of distinct subpopulations of DCIS lesions, which will likely have utility in breast cancer research and clinical practice.
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Affiliation(s)
- Andrea J Clark
- Department of Ophthalmology and Visual Sciences, 1000 Wall Street, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Howard R Petty
- Department of Ophthalmology and Visual Sciences, 1000 Wall Street, University of Michigan Medical School, Ann Arbor, MI, USA
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12
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The distribution of ductal carcinoma in situ (DCIS) grade in 4232 women and its impact on overdiagnosis in breast cancer screening. Breast Cancer Res 2016; 18:47. [PMID: 27160733 PMCID: PMC4862233 DOI: 10.1186/s13058-016-0705-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 04/19/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The incidence of ductal carcinoma in situ (DCIS) has rapidly increased over time. The malignant potential of DCIS is dependent on its differentiation grade. METHODS Our aim is to determine the distribution of different grades of DCIS among women screened in the mass screening programme, and women not screened in the mass screening programme, and to estimate the amount of overdiagnosis by grade of DCIS. We retrospectively included a population-based sample of 4232 women with a diagnosis of DCIS in the years 2007-2009 from the Nationwide network and registry of histopathology and cytopathology in the Netherlands. Excluded were women with concurrent invasive breast cancer, lobular carcinoma in situ and no DCIS, women recently treated for invasive breast cancer, no grade mentioned in the record, inconclusive record on invasion, and prevalent DCIS. The screening status was obtained via the screening organisations. The distribution of grades was incorporated in the well-established and validated microsimulation model MISCAN. RESULTS Overall, 17.7 % of DCIS were low grade, 31.4 % intermediate grade, and 50.9 % high grade. This distribution did not differ by screening status, but did vary by age. Older women were more likely to have low-grade DCIS than younger women. Overdiagnosis as a proportion of all cancers in women of the screening age was 61 % for low-grade, 57 % for intermediate-grade, 45 % for high-grade DCIS. For women age 50-60 years with a high-grade DCIS this overdiagnosis rate was 21-29 %, compared to 50-66 % in women age 60-75 years with high-grade DCIS. CONCLUSIONS Amongst the rapidly increasing numbers of DCIS diagnosed each year is a significant number of overdiagnosed cases. Tailoring treatment to the probability of progression is the next step to preventing overtreatment. The basis of this tailoring could be DCIS grade and age.
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