Figure 3: Ultrastructural examination of acne scar tissue before irradiation. The fibroblasts (FB) are seen to assume a thin and long form or a spherical form, with a small cytoplasm relative to the size of the nuclei and poor development of organelles. The elastic fibers (EF) in the specimen are characterized by sporadic deposition of elastin in the elastic microfilaments. (Cap: capillaries). (Scale bar, 4 μm).