A Systematic Review of Diagnoses with Rosettes Under Dermoscopy.

INTRODUCTION: Rosettes are a cluster of shiny white dots in the shape of a four-leaf clover seen under polarized dermoscopic light. Historically, rosettes were primarily reported in actinic keratoses and squamous cell carcinoma. However, rosettes have also been reported in other conditions. OBJECTIVES: The objective of this systematic review to elucidate the breadth of diagnoses exhibiting this unique dermoscopic phenomenon. METHODS: A review was conducted following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Literature searches were performed in MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials and Web of Science, as well as a manual search of the reference lists of screened articles. RESULTS: A total of 73 articles met the inclusion criteria. Out of these, 47 distinct diagnoses with rosette were identified. Among neoplastic conditions, keratinizing neoplasms had the highest number of articles reported (N = 19). Discoid lupus was the most commonly reported diagnosis within the inflammatory category (N = 6). Molluscum contagiosum was the predominant diagnosis among infectious entities (N = 3), while acroangiodermatitis was the sole diagnosis reported in the vascular category (N = 1). CONCLUSIONS: These findings confirm rosettes are not specific to keratinocytic growths and are observed in a wide range of conditions. Knowledge of the breadth of conditions with rosettes may aid clinicians when developing a differential diagnosis of a growth or an eruption with rosettes under dermoscopy.

Dermoscopic Lotus of Learning: Implementation and Dissemination of a Multimodal Dermoscopy Curriculum for Primary Care.

Dermoscopy is a cost-effective tool for detection of skin cancers yet there is limited training available for primary care. The goal of this project was to develop, implement, and disseminate a multimodal curriculum for primary care across a health system based on a previously validated algorithm (Triage Amalgamated Dermoscopic Algorithm; TADA). This cross-sectional study analyzes the dermoscopy workshop intervention of a dermoscopy multimodal curriculum. Volunteers attended one 120-minute dermoscopy workshop on benign and malignant growths using a validated algorithm. Participants took a 30-image pre- and posttest. Survey questions on dermoscopy use, preferences for learning, and skin biopsy performance were included to enhance curriculum development. About 96 participants completed both pre- and postintervention tests. The mean preintervention score (out of 30) was 18.6 and increased to 24.4 on the postintervention evaluation. There was a statistically significant improvement in scores for both benign and malignant skin growths after the intervention (P < .05). Short dermoscopy workshops have a positive intervention effect when training primary care providers to identify images of benign and malignant dermoscopic skin lesions. A multimodal dermoscopy curriculum allows learners to build on initial training using spaced review and blended learning strategies. The "Dermoscopic Lotus of Learning" has the potential to be a model for other primary care residency programs. A healthy partnership between dermatologists and primary care is essential.