primary lymphedema

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chronic swelling of a part due to accumulation of interstitial fluid (edema) secondary to obstruction of lymphatic vessels or lymph nodes.
congenital lymphedema Milroy disease.
primary lymphedema lymphedema that appears spontaneously without known cause. See table.

pri·mar·y lymph·e·de·ma

a form of lymphedema observed chiefly in young women and girls, characterized by diffuse swelling of the lower extremities.
Synonym(s): lymphedema praecox
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