Bluu Nevus (Blue nevus) ni aina ya nevus ya rangi; kwa kawaida ina madoa ya bluu au nyeusi yaliyo na alama. Rangi ya bluu ya nevus husababishwa na seli za melanin zilizokolekta ndani ya ngozi.
Wakati mwingine uchunguzi wa biopsia hufanywa, au kidonda kizima huondolewa kwa upasuaji. Matokeo ya kliniki kwa ujumla ni mazuri, na hatari ya mabadiliko ya saratani ni ndogo. Utambuzi tofauti ni pamoja na dermatofibroma na melanoma.
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.
Kwa sababu seli za nevus zipo kwa undani, inaonekana bluu.
Mfano usio wa kawaida ― Bluu Nevus (Blue nevus) kwa kawaida huwa na umbo linganifu. Katika hali kama hizo, saratani ya basal na melanoma inapaswa kutofautishwa.
Blue nevus inarejelea kundi la viota vya ngozi vinavyosababishwa na ukuaji kupita kiasi wa melanositi, na kuonekana kama bluu hadi matuta meusi kwenye kichwa, mikono, au matako. Kwa kawaida hawajaoa na hupatikana, lakini pia wanaweza kuwepo tangu kuzaliwa na kutokea katika maeneo mengi. Vidonda hivi, ambavyo mara nyingi huchukuliwa kimakosa kuwa na rangi nyeusi kama vile melanoma, kwa kawaida huonekana bluu kichwani, mikononi, sehemu ya chini ya mgongo, au matako. 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.
Wakati mwingine uchunguzi wa biopsia hufanywa, au kidonda kizima huondolewa kwa upasuaji. Matokeo ya kliniki kwa ujumla ni mazuri, na hatari ya mabadiliko ya saratani ni ndogo. Utambuzi tofauti ni pamoja na dermatofibroma na melanoma.