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Combined salivary duct carcinoma and squamous cell carcinoma suspected of carcinoma ex pleomorphic adenoma
Author(s) -
Enokida Tomohiro,
Fujii Satoshi,
Kuno Hirofumi,
Mukaigawa Takashi,
Tahara Makoto,
Sakuraba Minoru,
Hayashi Ryuichi
Publication year - 2016
Publication title -
pathology international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 74
eISSN - 1440-1827
pISSN - 1320-5463
DOI - 10.1111/pin.12429
Subject(s) - carcinoma ex pleomorphic adenoma , medicine , pathology , pleomorphic adenoma , salivary duct carcinoma , carcinoma , asymptomatic , adenoma , salivary gland
A 76‐year‐old Japanese woman had noticed an asymptomatic and palpable mass in her left parotid gland region for 20 years. The tumor had showed rapid growth during the last two months. Therefore, the tumor was clinically suspected of being a malignant tumor and was surgically resected. A histopathological examination revealed that the tumor consisted of two different histopathological neoplastic components accompanied by hyalinized fibrosis at the center of the tumor. The two‐neoplastic components were squamous cell carcinoma and salivary duct carcinoma. The tumor was suspected to be a carcinoma ex pleomorphic adenoma after considering the clinical course and the histopathological findings, such as hyalinized fibrosis at the center of the tumor. There was no evidence of recurrence at 30 months after the surgical resection.