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・出生時から認めたneurocutaneous melanosis(神経皮膚黒色症)を経験した. ・病理組織学的にはneuroid typeの母斑細胞の増生がみられた. ・皮膚病変に対しては悪性化リスクの軽減と整容上の観点からさまざまな方法で外科的切除を行った. (「症例のポイント」より)
A case of neurocutaneous melanosis
Jimura, Nozomi1)Fujii, Kazuyasu1)Aoki, Megumi2)Matsushita, Shigeto2)Kanekura, Takuro1) 1)Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences 2)Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center
Abstract A fifty-day-old boy was referred to our department. He had a giant congenital hairy nevus over his waist and buttock, and numerous pigmented nevi on his trunk and extremities. Pathological finding of biopsy from his waist lesion revealed a neuroid type nevus cell proliferation. Unenhanced T1-weighted MRI images showed hyperintense areas within the bilateral amygdala and hippocampus. These lesons were hypointense by T2-weighted images. A diagnosis of neurocutaneous melanosis was made based on his typical cutaneous lesions and MRI findings.
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