title: Myoepithelioma of the Parotid Gland Presenting as a Retroauricular Cutaneous nodule: A Case Report.
abstract: We are reporting a case of recurrent myoepithelioma of the parotid gland, that emerged as a cutaneous mass. She had a retroauricular subcutaneous mass with an underlying diagnosis of a cutaneous myoepithelioma, which was excised at a hospital's Dermatology Department 2 years earlier. The tumour was observed above the platysma and it was considered as a cutaneous myoepithelioma without the parotid gland structures. She had undergone a partial parotidectomy approximately 20 years earlier. At her first visit to our department, there was no evidence of facial nerve palsy or cervical lymphadenopathy. The radiological findings showed a multinodular growing mass of the parotid gland, just beneath the retroauricular skin and a total parotidectomy was performed. It was considered that even if the cutaneous mass emerged, the relationship between the cutaneous mass and the parotid gland should be pre-surgically examined by computed tomography (CT) or Magnetic resonance image (MRI). A long-term continuous follow-up was also needed.
authors.affiliation: Resarch Resident, Department of Oral and Maxillofacial Surgery, Oral Restitution, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University , 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan .
authors.forename: Yumi
authors.initials: Y
authors.lastname: Mochizuki
authors.forename: Ken
authors.initials: K
authors.lastname: Omura
authors.forename: Kae
authors.initials: K
authors.lastname: Tanaka
authors.forename: Kei
authors.initials: K
authors.lastname: Sakamoto
authors.forename: Akira
authors.initials: A
authors.lastname: Yamaguchi
keywords: Cutaneous tumor; Myoepithelioma; Parotid gland; Retroauricular region
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