In situ malignant melanoma on nevus spilus in an elderly patient.

Nevus spilus is the term usually given to a pigmented skin lesion, congenital or acquired, that may occur anywhere on the body, consisting of a large light tan patch with numerous superimposed darker scattered maculae or papulae that are flat or slightly raised. For a long time, nevus spilus was believed to be a benign lesion. However, in 1957 Perkinson reported a melanoma appearing on nevus spilus for the first time.

Erosive pustular dermatosis of the scalp induced by imiquimod.

Erosive pustular dermatosis of the scalp (EPDS) is a rare condition characterized by sterile pustules, erosions, and crusted lesions on the scalp of elderly patients. This inflammatory disorder has an unknown origin and it could develop into areas of alopecia that tend to be atrophic. An 84-year-old Caucasian man presented with a several months history of painful erythematous erosions and crusts on his scalp.

Nevus spilus and melanoma: case report and review of the literature.

Background: Nevus spilus is characterized by a pigmented patch with scattered flat or maculopapular speckles. Nevus spilus was first described by Burkley in 1842. Since then, this lesion has been widely debated in the literature, particularly for the possible occurrence of melanoma within the lesion.