Figure 3.

Skin folds, hair follicles and hair shafts. 6×6mm mosaics and insets (2×3mm) showing dark oil-filled “valleys” of skin folds (green arrows) and follicular orifices (red arrows) from which hair shafts of varying caliber protrude (yellow arrows). In the deeper mosaics (bottom row), one can see the linear dark “shadows” (magenta arrow) with loss of resolution created by the overlying reflective hair shaft and the white lines representing the base of the skin fold “valleys,” as the reflective stratum corneum is imaged (white arrows). This figure also illustrates the mosaic grid pattern and tangential imaging, where a wide range of tissue levels are present in a single mosaic. The circular pattern due to surface reflections from the imaging window is noted in the bottom right corner of the upper left mosaic and the images become progressively deeper toward the top left corner, where stratum granulosum/stratum spinosum is seen (yellow inset).