[Atypical cellular blue nevus. Apropos of 1 case].
We report a new case of a cellular blue nevus with clinicopathologic atypia. It was a large lesion presenting clinically as a vascular tumor located in the middle of the back. It grew for 2 years without skin ulceration. The pathological study suggested a cellular blue nevus with moderate nuclear atypia, without any atypical mitosis and necrosis. The differential diagnosis such as malignant blue nevus and melanoma are discussed in search of a better definition of these rare lesions.
Ah-Hot
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Service d'Anatomie Pathologique, Hôpital Broussais, 96, rue Didot 75676 Paris cedex 14. patrick.bruneval@brs.ap-hop-paris.fr
Rivet
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J
Saliou
C
C
Bailly
C
C
Bruneval
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P
D002467:Cell Nucleus / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D018329:Nevus, Blue / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*