Sunday, 12 September 2010

Imaging Characteristics of Male Breast Disease

Imaging Characteristics of Male Breast Disease
Zehra Hilal Adibelli, Ozgur Oztekin, Işil Gunhan-Bilgen, Hakan Postaci, Adam Uslu and Enver Ilhan
The Breast Journal 2010 16;5:510–518

Link to Journal

The purpose of the study was to describe the imaging findings of male breast disease. One hundred and sixty-four male patients, who underwent mammography and ultrasonography (US) between January 1999 and December 2008, were retrospectively evaluated. Seventy-five patients (46%) underwent biopsy, and 89 patients (54%) were diagnosed radiologically. The radiologic and pathologic diagnoses in 164 cases of this series were 13 cancers (8%), including one ipsilateral and one contralateral breast cancers, 147 cases of gynecomastia (90%), one fibroadenoma (0.6%), two cases of fibrocystic disease of the breast (1.2%), and one epidermoid inclusion cyst (0.6%).

Three mammographic patterns were adequate to describe all 147 cases of gynecomastia in our series: 53 patients (36%) had nodular gynecomastia, 46 patients (31%) had dendritic gynecomastia, and 48 patients (33%) had diffuse gynecomastia. Gynecomastia was unilateral in 65% of cases (n = 95), and bilateral in 35% of cases (n = 52). On physical examination, two of the malignant lesions had no clinic features of malignancy (15%). On mammography, 11 of 13 malignant masses were demonstrated (85%). A mass with microcalcifications was seen on mammograms in one case (9%). The contours of the masses were irregular in nine cases (82%), well-circumscribed in two cases (18%). The location of the masses was retroareolar in seven cases (64%) and eccentric to the nipple in four cases (36%). The size of the masses varied between 0.5 cm and 5 cm (mean 2.4 cm). Nipple retraction was evident in five cases (45%), and skin thickening in four cases (36%). All of the malignant masses were demonstrated on ultrasound; however, one of them was seen retrospectively after mammography. All of the masses were hypoechoic and solid, the contours were well-defined and smooth in two masses (15%), and irregular in 11 masses (85%), and five masses (39%) had posterior prominent shadowing. Axillary lymphadenopathia was detected in two cases (15%). One patient had a previous contralateral breast cancer, and one had an ipsilateral.

On mammography, breast cancer characteristically exhibits an irregular subareolar mass, nipple retraction, and skin ulceration or thickening, but sometimes breast cancer has a well-circumscribed contour and punctuated microcalcifications. Ultrasonography is essential and useful for further characterization and helpful for demonstrating lymphadenopathies of the axillary region

Computer-assisted Diagnosis in Full-field Digital Mammography—Results in Dependence of Readers Experiences

Computer-assisted Diagnosis in Full-field Digital Mammography—Results in Dependence of Readers Experiences
Christian Sohns, Besim Angic, Samuel Sossalla, Frank Konietschke and Silvia Obenauer
The Breast Journal 2010 16;5:490–497

Link to Journal

The object of this study was to assess the clinical usefulness of computer-assisted diagnosis (CAD) in the interpretation of early-research, benign and malignant mammograms in dependence on readers’ experience with CAD. CAD was applied on digital mammograms of 303 patients who were divided into three groups: early-research (n = 103), benign (n = 102) and malignant group (n = 98). Mammograms were analyzed by three readers with different experience in evaluating mammograms (medical student, an assistant and an attending physician specifically trained in mammography). All images were presented accidentally with and without the influence of CAD and from different patient groups. The mammograms were classified according to BI-RADS classification.

To evaluate readers’ sensitivity and specificity with and without the application of the CAD system, ROC analysis and the corresponding area under the curve (AUC) were evaluated for each reader. Afterwards significant differences of the accuracy according to readers experience and according to the assistance of the CAD system were calculated.

All readers have an account of accuracy by using CAD in both patient groups. The highest benefit has the student (10% increase of the AUC) followed by the resident (4%) and at least followed by the mammography fellow (3%). There are significant varieties of the accuracy in addiction to the readers’ experience and to the examination method with and without CAD system. Patient group has not a significant influence to the elevation of accuracy by using the CAD. All three readers have nearly the same increase of AUC in the examinations of malignant and early-research group summarized and of the malignant group only. Finally, the increase of accuracy depends on the readers’ experience. For all patient groups CAD-application causes a steeply increase of the ROC curve and consequently a gain of sensitivity

Axillary Ultrasound Assessment in Primary Breast Cancer: An Audit of 653 Cases

Axillary Ultrasound Assessment in Primary Breast Cancer: An Audit of 653 Cases
Pippa Mills, Ali Sever, Jenny Weeks, David Fish, Sue Jones and Peter Jones
The Breast Journal

Link to Journal

Axillary lymph node status is an important factor in determining the prognosis and treatment in patients with invasive breast cancer. The introduction of the sentinel lymph node biopsy technique in the axilla has significantly reduced the number of patients requiring an axillary clearance procedure. However, a proportion of patients will be found to have axillary metastases after a sentinel node biopsy and will then require a second axillary surgical procedure. A retrospective audit of 653 consecutive patients presenting with invasive breast cancer showed a preoperative diagnosis rate of axillary disease of 23% using axillary ultrasound and fine-needle aspiration (FNA) together. We performed 232 axillary FNAs to diagnose 150 positive axillae. This avoided the need for a second operation in 150 women.

The negative predictive value for axillary metastases using this technique was 79%. Overall accuracy was 84%.

Wednesday, 18 August 2010

The Utility of Breast MRI in the Management of Breast Cancer

The Utility of Breast MRI in the Management of Breast Cancer
Paige Teller, Valerie J. Jefford, Sheryl G. A. Gabram, Mary Newell and Grant W. Carlson

The Breast Journal 2010, 16;4:394–403

Link to Journal

Breast magnetic resonance imaging (MRI) is increasingly used in the evaluation of breast cancer. The impact of this modality on patient management at a single institution is evaluated in this paper. A retrospective review was performed for 114 breast cancer patients who had breast MRI as part of their diagnostic evaluation. Clinical information, mammograms, breast ultrasounds and MRI scans were reviewed to determine whether the MRI findings led to a change in patient management. Outcomes as the result of breast MRI were stratified as favorable and unfavorable. Ninety-five patients who had complete clinical, radiologic, and pathologic data were identified. The indications for breast MRI included: high risk screening (n = 3), diagnostic evaluation of disease after neo-adjuvant chemotherapy (n = 24) or prior to re-excision (n = 8), extent of in situ ductal, infiltrating ductal or infiltrating lobular disease histology (DCIS n = 3, IDC n = 24, ILC n = 17), identification of unknown primary (n = 2), assessment of contralateral breast (n = 4), recurrence surveillance (n = 5), and other (n = 5). MRI was concordant with clinical findings and other modalities in 70.5% of cases. MRI altered planned clinical management in 28 of 95 patients (29.5%). Management changes were favorable in 21 patients (75%). Diagnostic evaluation of the breast by MRI alters patient management in 30% of cases depending upon the indications. Alteration in patient management is favorable in 75% of cases. 

Evaluation of the breast by MRI alters the clinical management of nearly one-third of patients. Changes are favorable for the majority of these cases. Patients undergoing evaluation for contralateral disease, invasive lobular carcinoma and assessment of chemotherapeutic response may derive a more meaningful benefit from MRI

Flat Epithelial Atypia on Breast Needle Core Biopsy: A Retrospective Study with Clinical-Pathological Correlation

Flat Epithelial Atypia on Breast Needle Core Biopsy: A Retrospective Study with Clinical-Pathological Correlation
Tsu-Yee Joseph Lee, Rebecca F. MacIntosh, Daniel Rayson and Penny J. Barnes

The Breast Journal 2010, 16;4:377–383

Link to Journal

There are limited data to guide clinical management when flat epithelial atypia (FEA) is identified in breast needle core biopsies (NCBs). Our objectives were to determine the frequency of malignancy in subsequent breast excisions following NCB diagnosis of FEA, and to characterize the pathological and clinical features of associated tumors.

Two hundred and fifty-six breast NCBs from a retrospective search (January 1999–July 2007) were blindly reviewed for FEA/other columnar cell lesions (CCLs). NCBs with co-existing carcinoma were excluded. The study included 211 NCBs: 116 (55%) with CCLs without atypia; 40 (19%) with CCLs with atypical ductal hyperplasia (ADH), 15 (7%) with FEA and 40 (19%) with FEA and ADH; 94 cases had follow-up excisions. Ductal carcinoma in situ and/or invasive carcinoma were present in: 4/26 (15%) excisions with CCLs on NCB, 11/30 (37%) with CCLs + ADH, 1/7 (14%) with FEA alone, and 9/31 (29%) with FEA + ADH. (a) FEA was more frequently seen with ADH, than without ADH in NCBs, (b) FEA and CCLs were more frequently associated with malignancy when with ADH, and (c) tumors excised following NCB diagnosis of FEA+/−ADH had favorable prognostic factors.

A conservative excision is warranted following a NCB diagnosis of FEA and ADH, and may be warranted for FEA alone

Role of Fusion of Prone FDG-PET and Magnetic Resonance Imaging of the Breasts in the Evaluation of Breast Cancer

Role of Fusion of Prone FDG-PET and Magnetic Resonance Imaging of the Breasts in the Evaluation of Breast Cancer
Linda Moy, Marilyn E. Noz, Gerald Q. Maguire Jr, Amy Melsaether, Abby E. Deans, Antoinette D. Murphy-Walcott and Fabio Ponzo

The Breast Journal 2010, 16;4:369–376

Link to Journal

The purpose of this study is to report further about the statistically significant results from a prospective study, which suggests that fusion of prone F-18 Fluoro-deoxy-glucose (FDG) positron emission tomography (PET) and magnetic resonance (MR) breast scans increases the positive predictive value (PPV) and specificity for patients in whom the MR outcome alone would be nonspecific. Thirty-six women (mean age, 43 years; range, 24–65 years) with 90 lesions detected on MR consented to undergo a FDG-PET scan. 


Two blinded readers evaluated the MR and the computer tomography (CT) attenuation-corrected prone FDG-PET scans side-by-side, then after the volumes were superimposed (fused). A semiautomatic, landmark-based program was used to perform nonrigid fusion. Pathology and radiologic follow-up were used as the reference standard. The sensitivity, specificity, PPV, negative predictive value (NPV), and accuracy (with 95% confidence intervals) for MR alone, FDG-PET alone, and fused MR and FDG-PET were calculated. 

The median lesion size measured from the MR was 2.5 cm (range, 0.5–10 cm). Histologically, 56 lesions were malignant, and 15 were benign. Nineteen lesions were benign after 20–47 months of clinical and radiologic surveillance. The sensitivity of MR alone was 95%, FDG-PET alone was 57%, and fusion was 83%. The increase in PPV from 77% in MR alone to 98% when fused and the increase in specificity from 53% to 97% were statistically significant (p < 0.05). The false-negative rate on FDG-PET alone was 26.7%, and after fusion this number was reduced to 9%. 

FDG-PET and MR fusions were helpful in selecting which lesion to biopsy, especially in women with multiple suspicious MR breast lesions

Disentangling the Roles of Mammographic Screening and HRT in Recent Breast Cancer Incidence Trends in Italy by Analyses Based on Calendar Time and Time Since Screening Activation

Disentangling the Roles of Mammographic Screening and HRT in Recent Breast Cancer Incidence Trends in Italy by Analyses Based on Calendar Time and Time Since Screening Activation
Emanuele Crocetti, Carlotta Buzzoni, Fabio Falcini, Laura Cortesi, Vincenzo De Lisi, Stefano Ferretti, Rosario Tumino, Antonio Russo and Eugenio Paci

The Breast Journal 2010, 16;4:350–355
Link to Journal

The aim of the study was to evaluate the roles of screening activation and hormone replacement therapy discontinuation on the recent declining breast cancer incidence trends in Italy. We analyzed 41,358 invasive female breast cancers incident during 1991–2004 in six Italian population-based cancer registries.

Overall and age-specific incidence trends were evaluated using Joinpoint analysis. In addition to calendar years, data were analyzed on a years-since-screening-activation basis. Annual percentage change of standardized rates was computed. There were statistically significant increasing trends for women 40–44 and 45–49 years that did not change after screening activation. On the contrary, for women 50–69 years old and for those 70+ years, the increasing trends flattened around 2 years after screening activation. The prevalence of hormone replacement therapy use in Italy is and was rather low.

In conclusion, the recent tendency toward stabilization observed in Italy for female breast cancer incidence rates in women aged 50 years or more follows the introduction of mammographic screening