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The posterior fascia of the parotid gland and the leading edge of the sternocleidomastoid muscle, posterior belly of the digastric muscle, and styloid hyoid muscle are regarded as landmarks for the SP. The retroauricular incision starts from the level of the notch between the tragus and extends backward in an arc to avoid injury to the retroauricular branch of the GAN. The posterior fascia of the parotid gland and the leading edge of the sternocleidomastoid muscle, posterior belly of the digastric muscle, and styloid hyoid muscle are re