Diagnostic flow of patients in a national fast-track referral system for malignant melanoma

INTRODUCTION. Timely diagnosis of malignant melanoma (MM) is crucial for optimal patient outcomes. Thus, the Danish Health Authority implemented a fast-track referral system (FTRS) comprising a clinical diagnostic filter function (CDFF) and a cancer package. This study aimed to characterise the flow of patients with a tentative MM diagnosis referred through the CDFF to a department of dermatology. METHODS. Retrospective data from the Danish patient and pathology file system were analysed for patients referred to the Department of Dermato-Venereology at Bispebjerg Hospital, Denmark, via the CDFF, with suspected MM in a one-year period. RESULTS. Among 860 patients with 895 skin lesions, 283 (31.6%) were discharged with a clinical benign diagnosis after their initial consultation, whereas treatment of another 77 (8.6%) patients concluded following a three-month observation period. One-year follow-up of these 360 (283 + 77) clinically benign skin lesions showed no malignancy. Among 100 MM-suspicious lesions promptly referred for excision to a department of plastic surgery, 48% were MM. CONCLUSIONS. In a Danish population with tentative MM diagnosis referred through the CDFF to a dermatological hospital department, one-third of patients were discharged with a clinically benign diagnosis. Half of the skin lesions referred for excision to the department of plastic surgery were MM. This indicates a decreased burden of overdiagnosis and a potential reduction of unnecessary surgical scars when dermatologists serve as gate keepers of the FTRS for MM. FUNDING. None TRIAL REGISTRATION. Data obtained with permission from BBH j. no. 20078406.