Publication date: Sep 04, 2025
COVID-19 pandemic had a variable impact on the severity of melanomas. To assess the role of the COVID-19 pandemic in France on the severity of melanomas at initial diagnosis. New melanoma cases recorded in the French RIC-Mel database were included in a retrospective study spanning three timeframes: pre-COVID (01/01/2018 to 03/16/2020), lockdown (03/17/2020 to 10/05/2020), and the COVID pandemic period (hereafter referred to as “COVID”) (11/05/2020 to 30/09/2022). Patient and melanoma characteristics at diagnosis, along with time intervals to lymph node procedures and initiation of systemic treatments, were extracted. Statistical comparisons were conducted between the pre-COVID and COVID periods. A total of 3650 patients in the pre-COVID period were included: 121 during lockdown, and 2878 during the COVID period. Melanomas diagnosed during the COVID period were thicker (median 1. 5 mm; interquartile range [IQR]: 0. 7-3. 6) compared to those in the pre-COVID period (median 1. 2 mm; IQR: 0. 5-3. 0; p
| Concepts | Keywords |
|---|---|
| Covid | COVID-19 |
| Dermatol | Delay |
| French | Epidemiology |
| New | Melanoma |
| Prognosis | |
| Time to treatment |
Semantics
| Type | Source | Name |
|---|---|---|
| disease | MESH | COVID-19 pandemic |
| disease | MESH | melanoma |
| pathway | KEGG | Melanoma |
| drug | DRUGBANK | Honey |
| disease | IDO | role |
| disease | MESH | Long Covid |