Grouped and combined blue nevi
Hofmann, U.; Schacht, B.; Megahed, M.
Der Hautarzt; Zeitschrift für Dermatologie Venerologie und verwandte Gebiete 43(8): 517-519
1992
ISSN/ISBN: 0017-8470 PMID: 1506219 Document Number: 401250
The simultaneous occurrence of blue and naevocytic naevus in the same lesion is rare and can be difficult to diagnose. Precise differentiation from nodular melanoma may only be possible by histopathological examination. Agminated blue naevi, first described by Upshaw et al. [25] in 1947, are also rare. It is important to differentiate these lesions from nodular melanoma with satellite metastases. We describe two patients with such unusual blue naevi.