A mimic of self-healing juvenile cutaneous mucinosis?

A 14-year-old boy presented with a chronic history of atypical papular mucinosis consisting of multiple subcutaneous nodules and confluent papular skin lesions. He initially presented at age 2 years with the rapid onset of numerous subcutaneous nodular lesions that completely resolved over a period of years. Clinical and histologic evidence, together with his clinical course, were suggestive of self-healing juvenile cutaneous mucinosis (SHJCM), but a few years later, during childhood, he experienced a recurrence of the subcutaneous nodules involving the limbs, trunk, and face, in addition to new findings of multiple flesh-colored papules coalescing into plaques on his neck and back. Although his early childhood course and histologic picture were suggestive of SHJCM, the progressive nature of his disorder is not like that seen in SHJCM and appears different from other reported disorders involving cutaneous mucinosis.