Lymphedema

Updated: Apr 17, 2023
  • Author: Robert A Schwartz, MD, MPH; Chief Editor: William D James, MD  more...
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Overview

Practice Essentials

Lymphedema (see the image below) is an abnormal collection of protein-rich fluid in the interstitium resulting from obstruction of lymphatic drainage. Lymphatic obstruction causes an increase in the protein content of the extravascular tissue, with subsequent retention of water and swelling of the soft tissue. The increase in the extravascular protein stimulates proliferation of fibroblasts, organization of the fluid, and the development of a nonpitting swelling of the affected extremity.

Lymphedema in a patient with hypertension, diabeteLymphedema in a patient with hypertension, diabetes, and impaired cardiac function.

Signs and symptoms

Signs and symptoms of lymphedema include the following:

  • Chronic swelling of an extremity preceded lymphedema

  • Primarily lower extremity involvement (80%) but can also involve the upper extremities, face, genitalia, and trunk

  • Fevers, chills, and generalized weakness

  • Fatigue related to the size and weight of the extremity

  • Embarrassment in public

  • Severe impairment of daily activities

  • Recurrent bacterial or fungal infections

  • Recurrent episodes of cellulitis, lymphangitis, fissuring, ulcerations, and/or verrucous changes

See Clinical Presentation for more detail.

Diagnosis

Examination in a patient with lymphedema may reveal the following findings:

  • Nontender, pitting edema of the affected area, most commonly in the distal extremities; over time, radial enlargement of the area, progressing to a nonpitting edema

  • Erythema of the affected area and thickening of the skin, which appears as peau d'orange skin and woody edema

 
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