Active Surveillance of Atypical Ductal Hyperplasia of the Breast.

BACKGROUND: When needle core biopsy (NCB) of the breast yields atypical ductal hyperplasia (ADH), excision is typically recommended. The natural history of ADH undergoing active surveillance (AS) is not well described. We investigate the rates of upgrade to malignancy of excised ADH and the rates of radiographic progression under AS. MATERIALS AND METHODS: We retrospectively reviewed records of 220 cases of ADH on NCB. Of patients who had surgery within 6 months of NCB, we examined the malignancy upgrade rate. In the AS cohort, we examined rates of radiographic progression on interval imaging. RESULTS: The malignancy upgrade rate among patients who underwent immediate excision (n = 185) was 15.7%: 14.1% (n = 26) ductal carcinoma in situ (DCIS) and 1.6% (n = 3) invasive ductal carcinoma (IDC). Upgrade to malignancy was less common in lesions <4 mm in size (0%) or with focal ADH (5%), and more common among lesions presenting with a radiographic mass (26%). Among the 35 patients who underwent AS, median follow-up was 20 months. Two lesions progressed on imaging (incidence 3.8% at 2 years). One patient without radiographic progression was found to have IDC at delayed surgery. The remaining lesions remained stable (46%), decreased in size (11%), or resolved (37%). CONCLUSIONS: Our findings suggest that AS is a safe approach to managing ADH on NCB for most patients. This could spare many patients with ADH from unnecessary surgery. Given that AS is being investigated for low-risk DCIS in multiple international prospective trials, these results suggest that AS should also be investigated for ADH.

Systematic Review of Colorectal Cancer Screening-Related Apps.

Background: In the United States, colorectal cancer (CRC) is the second leading cause of cancer death in men and women combined. The United States Preventive Services Task Force recommends that average risk adults have regular CRC screening to detect and prevent CRC. Despite published CRC screening guidelines, national CRC screening rates remain suboptimal. With the exponential increase in technology use and device ownership, many mobile health applications (apps) have been developed to improve health outcomes. There is great potential for smartphone or tablet apps to help improve CRC screening uptake, with the ultimate goal of reducing CRC morbidity and mortality. To date, there are no systematic reviews that have examined the publicly available, free apps that are related to CRC screening, and therefore, the quality and the content of these apps remain unknown. Objectives: The purpose of this study was to systematically review smartphone and tablet apps that could be used to improve CRC screening uptake. Methods: Apps available on the Google Play and Apple App stores that were compatible with smartphones and tablets were reviewed. Of the 2,790 apps reviewed, 20 met inclusion criteria. Results: Of the 20 apps that met inclusion criteria, most were informational in nature. Approximately half of the apps focused on colonoscopies and did not discuss other CRC screening options. Furthermore, more than half of the apps did not include video/audio content and the majority of the apps did not provide navigation support (e.g., reminders, instructions, maps). Conclusions: There are multiple free, publicly available apps that may encourage CRC screening uptake. Despite their promise, there is a paucity of empirical evidence evaluating the efficacy and usability of these apps. Future research efforts can evaluate the content, usability, accessibility, and potential impact of these apps.