Human skin histology using high-resolution echography

Normal and abnormal human skin echograms were made using new 25-MHz and 40-MHz ultrasonic sector scanners, and were compared with histologic sections. The malpighian layer of the epidermis was demonstrated as an echolucent zone under a strongly echogenic, linear corneo-malpighian junction in normal palms and soles. Cross sections and longitudinal sections of hair follicles and hypertrophic sebaceous glands were also demonstrated as echolucent structures.