Skin biopsy is the standard diagnostic procedure for skin diseases but it has many disadvantages, including pain, scarring, risk of infection, and sampling error. Therefore, many patients do not consent to repeat or any biopsy at all, and the procedure can be rarely performed in children. With recent advances in skin imaging technology, widespread use of non-invasive imaging in the clinics for the practical management of skin diseases is becoming a possibility. Optical coherence tomography (OCT)...