[Monitoring a melanocytic tumor. When is excision indicated?].

Follow-up examination with comparison of dermoscopic images was performed over 24 months on an initially unimpressive, distinctly asymmetrical melanocytic tumor in a 39-year-old woman. She did not follow the recommendation for an excision after 19 months and 5 months later she came back for the next follow-up image. At this stage she was pregnant. The dermoscopic suspicion of a melanoma in-situ was confirmed by histology. This case is instructive in the view of follow-up, self-examination, self- detection of a melanoma, asymmetric changes of melanocytic lesion and evaluation of changes during pregnancy.