منابع مشابه
Squamous cell carcinoma ex pleomorphic adenoma a case report
A rare case of squamous cell carcinoma ex pleomorphic adenoma in maxillary sinus is presented. The patient is a 50-year-old woman presenting with a slow-progressive swelling in left side of her face that she has noticed 2 years earlier. The lesion was not painful and caused asymmetry and mild exophthalmos. Microscopic examination revealed that the tumor was composed of two components partly of ...
متن کاملCarcinoma ex-pleomorphic adenoma -- a giant tumor.
Pleomorphic adenoma is one of the most frequent tumors that involve the parotid gland. The tumor constantly increases in dimension if not cured in due time and may become malignant. A case of a patient suffering from a carcinoma ex-pleomorphic adenoma that had a 20-year-evolution and reached impressive dimensions is presented. The tumor holds the second place worldwide among the largest carcino...
متن کاملOssifying Parotid Carcinoma ex Pleomorphic Adenoma
We present a unique case of an extensively ossified carcinoma ex pleomorphic adenoma (CXPA) in a 76-year-old man with a five-year history of a slowly growing parotid mass. Fine-needle aspiration of the mass was nondiagnostic. A computed tomography (CT) scan of the lesion revealed a well-circumscribed mass with peripheral calcification. Initial pathological analysis suggested a benign parotid ma...
متن کاملImmunohistochemical Expression of p53 in Pleomorphic Adenoma and Carcinoma Ex Pleomorphic Adenoma
OBJECTIVE This study aimed to characterize alteration in the immunohistochemical expression of pRb in normal tissue of the salivary gland surrounding pleomorphic adenoma, the tumor cells of pleomorphic adenomas, and carcinoma arising in pleomorphic adenoma. STUDY DESIGN A selected series of 29 cases of pleomorphic adenomas, and 27 cases of carcinoma ex-pleomorphic adenoma (undifferentiated an...
متن کاملCarcinoma ex pleomorphic adenoma of the parotid gland.
BACKGROUND Carcinoma ex pleomorphic adenoma (CXPA) is a rare aggressive epithelial malignancy arising from a primary or recurrent benign mixed tumor. Only a few case reports describing the radiologic features of CXPA have been published. PURPOSE To describe and characterize the magnetic resonance (MR) imaging findings of CXPA in the parotid gland and correlate them with pathologic findings. ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Head and Neck Pathology
سال: 2009
ISSN: 1936-055X,1936-0568
DOI: 10.1007/s12105-009-0156-8