title: Oral mucosa malignant melanoma in situ with involvement of the perioral skin.
abstract: A 66-year-old Japanese woman had a pigmented macule spreading from the internal aspect of the cheek to the vermilion border and perioral skin. Histology was that of in situ malignant melanoma. This case appears to be unique as it implies a longer period of radial growth than is usually observed in malignant melanoma of the oral mucosa.
authors.affiliation: Department of Dermatology, Tohoku University School of Medicine, Sendai, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Horiuchi
authors.forename: T
authors.initials: T
authors.lastname: Tsunoda
authors.forename: T
authors.initials: T
authors.lastname: Suetake
authors.forename: T
authors.initials: T
authors.lastname: Kato
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008048:Lip Neoplasms / Q000473:pathology*; D008545:Melanoma / Q000473:pathology*; D009061:Mouth Mucosa / Q000473:pathology; D009062:Mouth Neoplasms / Q000473:pathology*; D009361:Neoplasm Invasiveness; D012878:Skin Neoplasms / Q000473:pathology*