Letter to the Editor
Copyright ©The Author(s) 2024.
World J Clin Cases. Jan 6, 2024; 12(1): 232-235
Published online Jan 6, 2024. doi: 10.12998/wjcc.v12.i1.232
Table 1 Clinical classes of the clinical-etiology-anatomy-pathophysiology classification
Classification

C0No visible or palpable signs of venous diseas
C1Telangiectasia or reticular veins
C2Varicose veins
C3Edema
C4Skin changes due to venous diseases (pigmentation, venous eczema, and lipodermatosclerosis)
C5Skin changes as defined above with a healed ulcer
C6Skin changes as defined above with an active ulcer