title: Malignant melanoma associated with a blue naevus: a case report.
abstract: BACKGROUND
  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.
  
  
  METHODS
  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.
  
  
  CONCLUSIONS
  This finding suggests that combined naevi should be always excised and histologically examined to achieve a correct diagnosis and avoid risk of misclassification.
authors.affiliation: Department of Biochemistry, Sect, Pathology, Second University of Naples, Naples, Italy. alfonsobaldi@tiscali.it.
authors.forename: Pasquale
authors.initials: P
authors.lastname: Mellone
authors.forename: Alexander
authors.initials: A
authors.lastname: Bianchi
authors.forename: Emanuele
authors.initials: E
authors.lastname: Dragonetti
authors.forename: Raffaele
authors.initials: R
authors.lastname: Murace
authors.forename: Paolo
authors.initials: P
authors.lastname: Persichetti
authors.forename: Alfonso
authors.initials: A
authors.lastname: Baldi