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Published on: November 13, 2012
Malignant melanoma associated with a blue naevus: a case report
Pasquale Mellone1, Alexander Bianchi, Emanuele Dragonetti
1Department of Biochemistry, Sect, Pathology, Second University of Naples, Naples, Italy. alfonsobaldi@tiscali.it.
Introduction:
Combined malignant naevi are characterised pathologically by the association of a melanoma with one or more different types of benign melanocytic naevi in a single lesion.
Case Presentation:
We show here a case of malignant combined naevus made up of a blue naevus and a melanoma, presenting as a slowly progressing and asymptomatic pigmented lesion on the trunk of a 35-year-old man. Dermoscopic examination was not conclusive for a malignant lesion, showing only an atypical brown pigment network. The definitive diagnosis was reached only at the hystopathological examination.
Conclusion:
This finding suggests that combined naevi should be always excised and histologically examined to achieve a correct diagnosis and avoid risk of misclassification.
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