Memorial Sloan Kettering Cancer Center
This study will involve collecting information about the regular medical care you receive for large cutaneous melanocytic nevi (LCMN) or neurocutaneous melanocytosis (NCM).
Inclusion Criteria: * Patients with LCMN, defined as: * Dark-colored patch of skin present at birth * Can be located anywhere on the individual's skin * May include satellite lesions * May be associated with hypertrichosis OR, in absence of cutaneous involvement: * histologically or radiographically confirmed CNS melanocytosis. * Any age at diagnosis. * Signed informed consent by a patient, or parent/legal guardian. * Deceased patients can be included provided that parent/legal guardian is contacted at least 6 months after the death of the child and not on the child's birthd…
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