According to a review of literatures, silicone-induced lymphadenopathy occurs in association with rupture or silicone leakage. It has been reported to cause inflammation, neuropathy or systemic disorder. It should therefore be detected both correctly and promptly. The author experienced a rare case of a 38-year-old woman presenting with axillary silicone lymphadenopathy due to rupture of a silicone gel-filled breast implant. The patient received primary augmentation mammaplasty using a breast implant at other hospital; the current case highlights the importance of an ultrasoundassisted diagnosis of silicone lymphadenopathy before reoperation in a patient with rupture.