Hyperreflective mottled layer beneath the DEJ Texture and intensity due to packed collagen bundles with minimal fluid and vessel content Less prominent in aged and sun damaged skin Can appear thinner on various anatomical regions Can be completely absent in heavy sun damage or pathology
Lowest visible layer of follicular skin Hyporeflective mottled texture due to hyperreflective collagen bundles and a high fluid content from tissue fluid perfusion and vessels
Hyperreflective, smooth mottled texture Small hyporeflective areas due to capillaries Small collagen bundles closely packed together Follicular skin papillary dermis
Hyporeflective, smooth mottled texture. Large collagen bundles loosely packed due to vessels and tissue fluid pockets. Follicular skin reticular dermis