Innumerable nevi with giant congenital melanocytic nevus clinically mimicking neurofibromatosis: A diagnostic challenge.

CASE REPORT A 31-year-old half Thai, half white woman presented to the dermatology clinic for evaluation of multiple disfiguring pigmented papules and nodules covering her entire body. Her dermatologic history was significant for a GCMN treated with curettage at age 2. The patient reported that she was born with many pigmented papules and nodules, which increased in number throughout her life. She was otherwise healthy with no cognitive deficits, seizures, evidence of neurocutaneous melanosis, or skeletal malformations. There was no family history of a similar skin disorder or neurofibromatosis. Physical examination found a large plaque with residual skin-colored and pigmented nodules involving her left back (crossing midline), posterior neck, and left anterior chest. She had evidence of scar and residual pigmented patches and nodules consistent with regrowth after curettage of the GCMN, which covered an area with estimated greatest diameter of more than 60 cm. The patient also had greater than 1000 well-circumscribed, dome-shaped papules and exophytic, pedunculated nodules