Dermatologic signs

solid, non-blisterform elevated areas in or under the skin

thumb|Guide to fingerprint identification Dermatoglyphics (from Ancient Greek derma, "skin", and glyph, "carving") is the scientific study of fingerprints, lines, mounts and shapes of hands, as distinct from the superficially similar pseudoscience of palmistry.

clinical test to diagnose dermatological lesions

skin lesion on lines of trauma

explosive onset of multiple seborrheic keratoses

skin sign

appearance of punctate bleeding spots when psoriasis scales are scraped off

topological lines drawn on human body correspond to the natural orientation of collagen fibers in dermis.