Blue nevus - 青色母斑
＠母斑細胞が深く存在するため、青色に見えます。
relevance score : -100.0%
ReferencesBlue nevusは、メラノサイトの過剰増殖により生じる皮膚腫瘍の一群を指し、頭部、腕、臀部などに青色から黒色の隆起として現れます。通常は単一で後天性ですが、先天的に生まれつき存在したり、複数部位に出現することもあります。これらの病変は、黒色腫などの濃い色素沈着腫瘍と誤診されやすく、特に頭皮、腕、腰、臀部では青く見えることが多いです。
The term blue nevus describes a group of skin lesions characterized by dermal proliferation of melanocytes presenting as blue to black nodules on the head, extremities, or buttocks. In most cases, they are acquired and present as a solitary lesion but may also be congenital and appear at multiple sites. Blue nevi are melanotic dermal lesions that commonly presents as a blue nodule on the scalp, extremities, sacrococcygeal region, or buttocks. Its characteristic blue to black hue is frequently confused with other darker pigmented lesions, including malignant melanoma.
The term blue nevus describes a group of skin lesions characterized by dermal proliferation of melanocytes presenting as blue to black nodules on the head, extremities, or buttocks. In most cases, they are acquired and present as a solitary lesion but may also be congenital and appear at multiple sites. Blue nevi are melanotic dermal lesions that commonly presents as a blue nodule on the scalp, extremities, sacrococcygeal region, or buttocks. Its characteristic blue to black hue is frequently confused with other darker pigmented lesions, including malignant melanoma.
生検が行われることもあり、病変全体を外科的に除去することもあります。臨床経過は概ね良好で、悪性化の可能性は極めて低いです。鑑別診断には皮膚線維腫や黒色腫が含まれます。