Teledermoscopy-Aided Self-Skin Examinations for Remote Triage of Skin Lesions

ABSTRACT

Purpose of Study Teledermatology, defined as the use of technology to provide dermatology services to individuals in a remote setting, has grown considerably in popularity since the onset of the COVID-19 era. Teledermoscopy utilizes a dermatoscope attachment paired with a smartphone camera to visualize colors and microstructures within the epidermis and superficial dermis that cannot be seen with the naked eye alone. When combined with store-and-forward technology, teledermoscopy of lesions concerning for skin cancer can improve virtual referral and triage workflow. Methods Used Our retrospective case-control study evaluated the efficacy of a smartphone dermatoscope borrow program in the remote triage of individuals with self-selected skin lesions of concern and its effect on subsequent in-person follow-up visits. A retrospective medical record review was conducted of all Oregon Health and Science University (OHSU) Department of Dermatology spot check image submissions utilizing the smartphone dermatoscopes between August 2020-2022. Dermoscopic images of skin lesions that included corresponding non-dermoscopic clinical images in their submission were included in our review (n=70). A blinded expert dermoscopist then reviewed the clinical and dermoscopic images separately and utilized standard clinical algorithms for skin cancer (ABCD criteria asymmetry, irregular borders, multiple colors, diameter>= 6mm for clinical images;3-point checklist dermoscopic asymmetry, atypical network, blue-white structures for dermoscopy images) to determine whether the imaged lesion should translate to an in-person visit for further evaluation. Summary of Results: Of the 70 skin lesions submitted, 59 warranted in-person evaluation from clinical (non-dermoscopic) image review compared to 29 warranting in-person evaluation from dermoscopic images of the same lesion. Thus, this is a 51% reduction of conversion to in-person consultation with the addition of smartphone dermatoscope images in virtual lesion triage (P<0.001, McNemar's Test). Conclusion(s) Implementing patient-led teledermoscopy may reduce frequency of in-person visits for benign lesions, and thus, may decrease wait times for other patients with concerning and possibly malignant lesions. Decreasing the frequency of unnecessary visits may not only improve patient quality of life, but also promote cost-effective expenditures for health systems at large.