title: Pilomatrix carcinoma on the left side of the parotid region: A case report and review of the literature.
abstract: Pilomatrix carcinoma (PC) is a rare neoplasm, particularly in the parotid region. Thus, it is easily misdiagnosed and an optimal treatment regimen has not yet been established. The present study reports the case of a 43-year-old female who presented with a PC of the parotid region and reviews the associated published literature. The patient underwent three surgical excisions prior to the tumor being completely removed, and was misdiagnosed four times prior to the correct diagnosis. Once the tumor was completely removed, the patient received radiation therapy (RT). At the 2-year follow-up, the patient remained free of local recurrence and metastasis. To the best of our knowledge, only 3 cases of PC on the parotid region have been reported. Although an optimal treatment regimen has not been established, surgery with wide margins is recommended, with RT and chemotherapy producing mixed results.
authors.affiliation: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, Sichuan 610041, P.R. China.
authors.forename: Ji-Feng
authors.initials: JF
authors.lastname: Liu
authors.affiliation: Department of Otolaryngology, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610041, P.R. China.
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.affiliation: Department of Radiation Oncology, Sichuan Cancer Hospital, Chengdu, Sichuan 610041, P.R. China.
authors.forename: Zi-Xuan
authors.initials: ZX
authors.lastname: Fan
authors.affiliation: North Sichuan Medical College, Nanchong, Sichuan 637007, P.R. China.
authors.forename: Ting
authors.initials: T
authors.lastname: Jiao
authors.affiliation: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, Sichuan 610041, P.R. China.
authors.forename: Chao
authors.initials: C
authors.lastname: Li
authors.affiliation: Department of Pathology, Sichuan Cancer Hospital, Chengdu, Sichuan 610041, P.R. China.
authors.forename: Sheng
authors.initials: S
authors.lastname: Qin
authors.affiliation: Department of Radiation Oncology, Sichuan Cancer Hospital, Chengdu, Sichuan 610041, P.R. China.
authors.forename: Jin-Yi
authors.initials: JY
authors.lastname: Lang
authors.affiliation: Department of Imageology, Sichuan Cancer Hospital, Chengdu, Sichuan 610041, P.R. China.
authors.forename: Jin-Xiu
authors.initials: JX
authors.lastname: Chen
keywords: chemotherapy; parotid; pilomatrix carcinoma; radiation therapy; surgery