Blue nevus is a type of melanocytic nevus. The blue colour is caused by the pigment being deeper in the skin than in ordinary nevi. In principle they are harmless but they can sometimes be mimicked by malignant lesions, i.e. some melanomas can look like a blue nevus.
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Blue nevus isho iqoqo lesikhumba elikhula ngenxa yokwanda ngokweqile kwama‑melanocyte, elibonakala njengama‑macule aluhlaza okwesibhakabhaka ekhanda, ezingalweni, noma ezinqeni. Ngokuvamile awavame ukubonakala futhi atholakala, kodwa angavela kusukela ekuzalweni futhi angatholakala ezindaweni eziningi. Lezi zimpawu, ezivame ukudideka nezinye izilonda ezimnyama ezifana ne‑melanoma, ngokuvamile zibonakala njengoluhlaza okwesibhakabhaka esikhumbeni, ezingalweni, emhlane ophansi, noma ezinqeni. 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.
Ngezinye izikhathi kwenziwa i-biopsy, noma isilonda sisuswa ngokuhlinzwa. Umphumela womtholampilo ngokuvamile muhle, futhi mancane amathuba okuba umdlavuza ushintshe. Ukuxilongwa okungafani kuhlanganisa i-dermatofibroma ne-melanoma.