Moro, RuggeroGonzález-Ramos, JessicaMartínez-García, SilvestreRequena, CeliaTraves, VictorManrique-Silva, EsperanzaNagore, Eduardo2023-02-092023-02-092020-10-06http://hdl.handle.net/10668/16275Locoregional lymph node recurrences of primary trunk melanoma can occur in basins not identified during sentinel lymph node biopsy. However, the factors associated with recurrences in non-sentinel lymph node basins are unknown. To evaluate these factors, this observational retrospective study examined the patterns of first lymph node recurrence and the factors associated with recurrence in non-sentinel lymph node basins. A total of 305 patients with primary trunk melanoma who had undergone sentinel lymph node biopsy from 2000 to 2015 were evaluated. Twenty-three patients presented locoregional lymph node recurrence; 8 of which (34.8%) were in non-sentinel lymph node basins. Non-sentinel lymph node recurrences were more frequent in patients with positive sentinel lymph nodes and in those patients whose number of tumour-involved nodes was > 3. These results suggest that clinical examination and ultrasound surveillance should be performed on all potential lymph node drainage basins of trunk melanomas.enAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/lymph noderecurrencetrunkmelanomaHumansLymph Node ExcisionLymph NodesLymphatic MetastasisMelanomaNeoplasm Recurrence, LocalRetrospective StudiesSentinel Lymph NodeSentinel Lymph Node BiopsySkin Neoplasmsresearch article32945339open access10.2340/00015555-36351651-2057PMC9274927https://doi.org/10.2340/00015555-3635https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9274927/pdf