Osteo-nevus of Nanta: a case report and review of the Japanese literature.
We reported a 58-year-old Japanese male with osteo-nevus of Nanta on his right cheek. Histological examination revealed nests of nevus cells throughout the entire dermis. Just beneath the nevus in the lower dermis, several basophilic oval-shaped membranous structures were positive with Kossa stain. No inflammatory infiltrate or foreign-body granuloma were seen. We reviewed 28 cases of osteo-nevus of Nanta reported in the Japanese literature and discussed the pathogenesis of ossification in the lesions of nevus cell nevi.
Sasaki
S
S
Department of Dermatology, Yamagata University School of Medicine, Japan.
Mitsuhashi
Y
Y
Ito
Y
Y
D006801:Humans; D008297:Male; D008875:Middle Aged; D009508:Nevus, Pigmented / Q000473:pathology*; D009999:Ossification, Heterotopic / Q000473:pathology*; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology*