1994 年 9 巻 2 号 p. 161-164
In this report, we described a case of lentigo maligna, which had originally appeared on the sun-exposed area and then gradually extended into non-sun-exposed mucosal area. A 65-year-old woman had developed a pigmented skin lesion on the right ala of her nose. This lesion was gradually enlarged and extended into the mucosal part of her nasal cavity. The skin lesion, histologically diagnosed as a lentigo maligna, was excised and resulting skin defects were reconstructed by free skin grafts.
This case was unique in the respect that the lentigo maligna extended into the non-sun exposed mucosal area.