title: Efficacy of pingyangmycin injection for the treatment of cervical epidermoid cysts.
abstract: Epidermoid cysts are benign lesions commonly seen in the head and neck region. Here, we describe the case of an epidermoid cyst in a 20-year-old man with a history of trauma presenting with a complaint of mass in the right cervical region. Upon closer examination, a 3cm long scar was noticed within the swollen region of the right submandibular area. MRI revealed a soft tissue mass involving the right neck and fine-needle aspiration biopsy showed that the content of the cyst was homogenous, confirming the diagnosis of epidermoid cyst. We used a pingyangmycin injection to manage the cyst with excellent short-term results, but the lesion reappeared after 3 months. The patient ultimately underwent surgical enucleation of the mass under general anesthesia.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine Shanghai 200011, China.
authors.forename: Ling
authors.initials: L
authors.lastname: Zhang
authors.forename: Jing
authors.initials: J
authors.lastname: Zheng
authors.forename: Hua-Ming
authors.initials: HM
authors.lastname: Mai
authors.forename: Ling
authors.initials: L
authors.lastname: Zhu
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Jia-Wei
authors.initials: JW
authors.lastname: Zheng