OBJECTIVE: To verify the diagnostic efficiency of venous duplex ultrasound and lymphangioscintigraphy (LAS) in establishing the cause of leg edema and to clarify the pathology of these leg edemas. MATERIALS AND METHODS: Between April 2009, and March 2010, 62 patients with leg edema of unknown origin were referred to the Edema Clinic of the Yamaguchi University Graduate School of Medicine. All patients underwent a venous duplex ultrasound scan and LAS. RESULTS: Of 62 patients, lymphatic insufficiency, venous insufficiency or both was diagnosed in 42 (68%), and lymphedema, in 29 (47%). Venous duplex ultrasound detected obvious venous disorders in only 13 (21%), and for 20 patients, the ultrasound and LAS did not reveal any abnormalities; however, for 15 of the 20 (24% of all patients), venous edema was attributed to functional causes. CONCLUSION: Venous duplex ultrasound and LAS assisted in the diagnosis of leg edema of unknown origin and also proved useful in establishing treatment strategies.
OBJECTIVE: To verify the diagnostic efficiency of venous duplex ultrasound and lymphangioscintigraphy (LAS) in establishing the cause of leg edema and to clarify the pathology of these leg edemas. MATERIALS AND METHODS: Between April 2009, and March 2010, 62 patients with leg edema of unknown origin were referred to the Edema Clinic of the Yamaguchi University Graduate School of Medicine. All patients underwent a venous duplex ultrasound scan and LAS. RESULTS: Of 62 patients, lymphatic insufficiency, venous insufficiency or both was diagnosed in 42 (68%), and lymphedema, in 29 (47%). Venous duplex ultrasound detected obvious venous disorders in only 13 (21%), and for 20 patients, the ultrasound and LAS did not reveal any abnormalities; however, for 15 of the 20 (24% of all patients), venous edema was attributed to functional causes. CONCLUSION: Venous duplex ultrasound and LAS assisted in the diagnosis of leg edema of unknown origin and also proved useful in establishing treatment strategies.
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