Extramammary Paget's disease: a novel approach to treatment using a modification of peripheral Mohs micrographic surgery.

Extramammary Paget's disease is a rare intraepithelial adenocarcinoma typified histologically by the presence of Paget cells. Treatment has historically been surgical, with wide excision being the standard of care. However, due to clinically indeterminate margins and diffuse spread, local recurrence rates remain high.

Staged excision of lentigo maligna and lentigo maligna melanoma: a 10-year experience.

Background: The treatment of lentigo maligna and lentigo maligna melanoma presents a difficult problem for clinicians. Published guidelines recommend a 5-mm excision margin for lentigo maligna and a 1-cm margin for lentigo maligna melanoma, yet these are often inadequate. The authors' purpose is to report their 10-year experience using staged excision for the treatment of lentigo maligna and lentigo maligna melanoma of the head and neck.

Lentigo maligna: diagnosis and treatment.

Lentigo maligna is an overgrowth of atypical melanocytes at the dermal-epidermal junction also known as melanoma in situ. Left untreated, these lesions can continue to grow, resulting in dermal invasion and progression to lentigo maligna melanoma. Many operative and nonoperative treatments have been developed with the goals of preserving function and cosmesis while at the same time addressing the diffuse nature of these lesions.