skin mole on human body. brown nevi or nevus on back skin. check moles concept. closeup

adult back birthmark body brown cancer carcinoma care check closeup concept cosmetic defect dermatology detail diagnosis disease epidermal exam examination growth human large macro medical melanoma mole moles naevi naevus neoplasm nevi nevus nodule papilloma patient pigmentation pigmented pimple prevention screening skin skincare spot texture treatment tumor wart