نتایج جستجو برای: pleomorphic adenoma mixed tumor
تعداد نتایج: 660082 فیلتر نتایج به سال:
OBJECTIVE This study aimed to characterize alteration in the immunohistochemical expression of p16 in normal tissue of the salivary gland surrounding pleomorphic adenoma, and the tumor cells of pleomorphic adenomas. MATERIAL AND METHOD A selected series of 120 cases of pleomorphic adenomas were examined. RESULTS The results showed that p16 expression in non tumor duct cells was strong posit...
Introduction: Cyfra 21 is a serum-soluble fragment of cytokeratin19. Increased Cyfra 21 serum levels and their benefit as a tumor marker have been shown in some malignancies. This study aimed to evaluate the serum levels of Cyfra 21 in patients with benign and malignant salivary gland tumors. Materials and Methods: In this cross-sectional study, the serum level of Cyfra 21 in 44 patients with m...
A 19-year-old girl referred to our clinic complaining of a painless lump on the left side of her tongue. The patient had no history of dysphagia, lingual paresthesia or bleeding. Physical examination revealed the presence of multiple enlarged lymph nodes on the left side of her neck. Histopathology of lingual mass and lymph nodes showed pleomorphic adenoma. To our knowledge, this is the firs...
OBJECTIVE To estimate the utility of ultrasonography in diagnosis and differentiation of pleomorphic adenomas. DESIGN From the group of 88 patients examined by ultrasound, who were referred because of the tumor in the preauricular area, submandibular area, or cheek, pleomorphic adenoma was finally diagnosed in 24 (with multiple recurrent tumors in 2 patients). RESULTS Ultrasound was able to...
Carcinoma ex pleomorphic adenoma is a rare tumor arising from the salivary glands that spreads through direct extension, through the lymphatic vessels, and, rarely, hematogenously. When distant metastases have been found, they have been reported mainly in the lung. We present an unusual case of carcinoma ex pleomorphic adenoma of the parotid gland with splenic metastases. The patient presented ...
BACKGROUND Surgery for recurrent parotid pleomorphic adenoma is a challenging problem. METHODS One hundred eight patients who underwent 134 reoperations for recurrent parotid pleomorphic adenoma (follow-up, 22 years) were evaluated for histopathologic features and risk factors for recurrence. RESULTS The number of reoperations for tumor recurrence ranged from 1 to 10. Twenty-seven patients ...
A 65 year old man presented with a right upper cervical mass. A diagnosis of pleomorphic adenoma was reported on fine needle aspiration cytology (FNAC). CT scan however reported an intramuscular sternocleidomastoid swelling. The tumor was excised and a diagnosis of nodular fasciitis was made. It is important to be aware of this diagnosis and that FNAC reports may mimic that of a pleomorphic ade...
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. ...
Introduction: Pleomorphic adenomas are benign neoplasms of salivary glands. The simultaneous homolateral occurrence of these tumors in salivary glands is exceedingly rare. Case Report: An adult female presenting to our OPD with the swelling of right-sided preauricular and submandibular regions was diagnosed with the pleomorphic adenoma based on fine needle aspiration c...
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