black-and-white eye close-up with sharp textures

texturesillustration blackandwhite magnification microscopic generative anatomical scientific metastasis cerebellum intestine diagnosis structure neurology pathology digestive education carcinoma malignant textures medicine disorder thalamus oncology closeup anatomy medical science biology disease diagram nervous illness drawing surgery healthy concept urinary health cancer tissue system vector neural sharp human organ brain nerve renal tumor gland black white body care cell eye art