Bilateral Submental Superficial Thrombophlebitis Following Hyaluronic Acid Filler Injections.

Superficial thrombophlebitis is an uncommon but notable complication following dermal filler injections. This case highlights a 39-year-old female individual presenting with bilateral submental superficial thrombophlebitis following hyaluronic acid filler to the jawline and chin. To the author's knowledge, this is the first reported case of superficial venous thrombosis (SVT) in the neck following dermal filler injection. This report uniquely highlights longitudinal follow-up, ultrasound imaging documentation, and outcome, making it the first case documented in such detail. Through clinical evaluation and a multidisciplinary approach to management, this case emphasizes the importance of diagnosis and continued follow-up when addressing rare complications in aesthetic medicine.