We report a 3-year-old girl who presented to our clinic with a left-sided neck mass at the junction of the middle and lower thirds of the anterior border of the sternocleidomastoid with a slight tenderness. The patient was then diagnosed with a branchial cleft and was taken for surgical excision. Intraoperatively, we injected methylene blue with fibrin glue using an arterial catheter inside the tract, which facilitated the dissection of the tract.