26 Neurotoxin Injection for Submandibular Gland Hypertrophy
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Indications
Ptosis or hypertrophy of the submandibular glands can be seen with aging. Post-necklift/facelift and liposuction patients are often left with more elegant jaw lines; however, ptotic submandibular glands can be unmasked, which can produce an unsightly lump on an otherwise smooth neck. Benign hypertrophy of the submandibular glands can be treated with BoNTA.
Anatomic Considerations
The submandibular glands are located under the mandible, beneath the platysma muscle, 2 to 3 cm posterior from midline, on each side of the neck. The facial artery passes just posterior to the gland, the marginal mandibular branch of the facial nerve passes over the capsule of the gland, and the facial vein passes around the gland’s posterior aspect. Deep to the gland are pharyngeal muscles and muscles of the floor of the mouth and base of the tongue.
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