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- Term used to describe 1 or more enlarged lymph nodes >10 mm in diameter (for inguinal nodes, >15 mm; for epitrochlear nodes, >5 mm)
- Any palpable supraclavicular, popliteal, or iliac lymph node considered abnormal
- Normal lymph nodes: Generally <10 mm
- Lymph nodes often palpable in normal, healthy children. They are present from birth, peak in size between 8 and 12 years of age, and then regress during adolescence.
- Lymph nodes drain contiguous areas:
- Cervical nodes drain head and neck area.
- Axillary nodes drain arm, thorax, and breast.
- Epitrochlear nodes drain forearm and hand.
- Inguinal nodes drain leg and groin.
- Supraclavicular nodes drain thorax and abdomen.