"C4a: pigmentation +/- eczema"
"C4b: lipodermatosclerosis or atrophie blanche"
"S: symptomatic"
"A: asymptomatic"
"Ec: congenital"
"Ep: primary"
"Es: secondary"
"En: no venous cause identified"
"As: superficial veins"
"Ap: perforating veins"
"Ad: deep veins"
"An: no venous location identified"
"Pr: reflux"
"Po: obstruction"
"Pr,o: reflux and obstruction"
"Pn: no venous pathophysiology able to identified"
Expected headings
"Clinical categories"
"Aetiological categories"
"Anatomical categories"
"Pathophysiology categories"
"The clinical, aetiological, anatomical and pathological classification (CEAP) is a common used method to classify venous disease."
"C2: varicose veins; distinguished from reticular veins by a diameter of 3 mm or more"