A matrix of morphology and distribution of calcifications in the breast: Analysis of 849 vacuum-assisted biopsies.

OBJECTIVE: The purpose of this retrospective analysis was to evaluate the likelihood of malignancy in prospectively categorized BI-RADS 4 and BI-RADS 5 calcifications. MATERIAL AND METHODS: This analysis included 849 women who underwent vacuum biopsy for BI-RADS 4 (with the subgroups 4A, 4B and 4C) or BI-RADS 5 calcifications between February 2007 and May 2015. Calcifications were classified according to the morphology and distribution descriptors of the BI-RADS lexicon (BI-RADS 4th edition lexicon). A standardized scheme (matrix) was used to combine the characteristics of the grouped calcifications with the BI-RADS assessment category. RESULTS: Overall, 275/849 (32%) lesions were found to be malignant. 285/327/208/29 calcified lesions were prospectively classified as BI-RADS 4A/4B/4C/5 indicating a risk for malignancy of 16%/27%/55%/90%, respectively. The morphology descriptors predicted the risk for malignancy as follows: typically benign (n=55): 2%; indeterminate (n=676): 27%; typically malignant (n=118): 80%. The distribution descriptors correlated with a malignant histology as follows: diffuse (n=0); round or oval (n=261): 22%; regional (n=398): 33%; segmental (n=106): 42%; linear or branching (n=85): 55%. There was a significant difference between the descriptor categories (p<0.0001). CONCLUSION: A standard scheme combining the morphology and distribution characteristics proved to be a helpful tool in diagnosis of calcifications, bridging the gap between description and classification of these lesions.

Utility of EFC quality indicators for colposcopy in daily practice: results from an independent, prospective multicenter trial.

OBJECTIVES: The accuracy of colposcopy as the gold standard to manage abnormal screening tests depends on qualification and well defined standards. A recent survey of the European Federation for Colposcopy (EFC) found strong heterogeneity in the practice of colposcopy across Europe. EFC defined four quality indicators (QIs) to enable quality assessment in colposcopy as one tool to harmonize colposcopy standards. We undertook a pilot project to estimate the utility of these QIs for an independent external quality assessment in daily routine colposcopy. STUDY DESIGN: Participating colposcopy clinics used newly developed software for data collection. Data were automatically anonymized, encrypted and stored in a secure relational database located within the clinics' network and allowed for an independent external benchmarking comparing the performance of participating clinics according to EFC QIs. RESULTS: 10,869 patients referred for routine colposcopy were included. On average none of the four EFC QIs was fulfilled. One target was almost met with 83.3% instead of 85% excisional treatments/conizations containing CIN2+ and for another QI the difference of 94.4% instead of 100% cases having a colposcopic examination prior to treatment for abnormal cervical cytology was mainly explained by wrong documentation. For a third QI, visibility of the squamocolumnar junction (SCJ) was only reported in 90.9% instead of 100% but reporting improved to 94.7% after a consensus meeting. The last QI, >80% clear margins in excised lesions/conizations were not considered as useful by some clinics and therefore not documented. DISCUSSION AND CONCLUSIONS: At least 3 out of 4 QIs seemed to be useful for quality assessment in colposcopy but will need rewording and readjustment. All tools for an independent electronic quality assessment with the use of EFC-QI are available and could be used to achieve a high quality standard in colposcopy across Europe.

Utility and Reproducibility of the International Federation for Cervical Pathology and Colposcopy Classification of Transformation Zones in Daily Practice: A Multicenter Study of the German Colposcopy Network.

OBJECTIVE: To compare the distribution of International Federation for Cervical Pathology and Colposcopy (IFCPC) transformation zone (TZ) types among women in different age groups referred to 8 colposcopy clinics. MATERIALS AND METHODS: Between February 2012 and February 2013, we prospectively collected individual patient data from 8 clinics within the German Colposcopy Network (G-CONE). Data were analyzed using ODSdysplasie, software designed to allow continuous quality assessment in colposcopy clinics. The distribution of IFCPC-classified TZ was compared between different centers for the following age groups: younger than 30 years, between 30 and 50 years, and older than 50 years. RESULTS: Of 3,761 patients included in the analysis, 2,153 (57%) were classified as having type 2 TZ, 906 (24%) as type 1 TZ, and 702 (19%) as type 3 TZ. Type 3 TZ was the most commonly reported type in women older than 50 years (70%). We found that the relative distribution of type 3 TZ between age groups was similar in the participating colposcopy clinics. However, there was evidence of heterogeneous distribution of types 1 and 2 TZ between age groups in different clinics, ranging from 7.8% to 66.4% for type 1 TZ in women younger than 30 years and 28.9% to 78.1% for type 2 TZ in women 30 to 50 years old. CONCLUSIONS: Although IFCPC type 3 TZ seems to be a reproducible finding, the distribution of types 1 and 2 TZ showed significant heterogeneity. A more precise anatomic distinction between types 1 and 2 TZ in the IFCPC terminology could improve reporting of colposcopy findings.