Complex sentence: It is located under the superficial fascia and its insufficiency seemed of little importance in the majority of patients with varicose disease, however the use of ultrasonography has highlighted a new significance of this vein.
Split into simpler sentences: It is located under the superficial fascia and its insufficiency seemed of little importance in the majority of patients with varicose disease. The use of ultrasonography has highlighted a new significance of this vein.