Carcinoma ex pleomorphic adenoma mimicking multiple facial nerve schwannoma.
Carcinoma ex pleomorphic adenoma (CXPA) is a rare, aggressive, poorly understood malignancy that usually occurs in the salivary glands. CXPA has been reported to account for 3.6% of all salivary neoplasms and 11.7% of salivary malignancies. CXPA not only has a low incidence rate but there are few papers or case reports reporting perineural invasion rates. We report a case of CXPA which occurred in the parotid gland, showing retrograde perineural invasion along the facial nerve back to the internal auditory canal (IAC).
Park
Ki Cheol
KC
Department of Otolaryngology - Head and Neck Surgery, Ulsan University College of Medicine, Ulsan University Hospital, Ulsan, Republic of Korea.
Choi
Hye Jeong
HJ
Kwon
Joong Keun
JK
D008949:Adenoma, Pleomorphic / Q000175:diagnosis*; D000328:Adult; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005154:Facial Nerve / Q000473:pathology*; D006801:Humans; D008297:Male; D009442:Neurilemmoma / Q000175:diagnosis*; D010307:Parotid Neoplasms / Q000175:diagnosis*