نتایج جستجو برای: pleomorphic adenoma mixed tumor

تعداد نتایج: 660082  

Journal: :International Journal of Research in Medical Sciences 2023

Pleomorphic adenoma (PA) is the most common benign tumor of major salivary glands and intra nasal PA unusual which may be misdiagnosed as malignancy. A 65-year-old female presented with unilateral bleeding obstruction in right cavity for 6 months. Local examination showed polypoid mass surgically excised. HPE classic triphasic component epithelial, myoepithelial cartilaginous stromal elements p...

Journal: :Histology and histopathology 2016
Clara Patrón-Bolaños Laura Acosta-Torres Fernando Tenorio-Rocha Luis Fernando Jacinto-Alemán Elba Leyva-Huerta

Pleomorphic adenoma is the most frequent type of benign salivary neoplasm located in the mouth and is characterized by its significant histopathological diversity. The histogenesis of the pleomorphic adenoma is uncertain; so far several studies suggest that myoepithelial cells are responsible for the variable histomorphology of this type of neoplasm. At times, stroma is the predominant element....

1996
Ki-Sung Park Woo Jung Sung

Pleomorphic adenoma is the most common form of major salivary gland tumors,but it is exceedingly rare in the trachea. We present a case of pleomorphic adenoma of the trachea in an 80-years-old man. Chest three-dimensional CT demonstrated a bosselated mass with a lobulated surface arising from the membranous portion of the upper trachea. Transbronchoscopic biopsy from the mass showed a biphasic ...

2014
Aron Z. Pollack Benjamin C. Paul Mike C. Sheu Gady Har-El

Background: Mucoepidermoid carcinoma ex-pleomorphic adenoma (MECxPA) is an extremely rare salivary gland malignancy. With only nine prior reported cases, this entity represents a challenging histopathological diagnosis. Methods: We present a case of a 71-year-old male with an enlarging left neck mass over several months. CT showed both a parapharyngeal space mass and a separate level II neck ma...

Journal: :Dental Journal: Majalah Kedokteran Gigi 2022

Background: Pleomorphic adenoma (PA) is a benign salivary gland tumour with high incidence and recurrence after treatment. It may recur the same appearance or develop toward malignancy, namely as carcinoma ex pleomorphic (CXPA). Howthis can transform into CXPA remains unclear. Purpose: The aim of this study was to analyse possibility pathogenesis progressivity PA CXPA. Methods: Twenty-four samp...

2010
Hassan Al Bisher

Coexistence of parotid tuberculosis along with a benign parotid tumor is a rare entity with only nine cases reported in the literature. We report here a case of primary parotid tuberculosis with concurrent pleomorphic adenoma in a 51-year-old female.

Journal: :Otolaryngologia polska = The Polish otolaryngology 2014
Ahmet Erim Pamuk Cavid Cabbarzade Halit Uner Rıza Önder Günaydın Kemal Kosemehmetoglu

Carcinoma ex pleomorphic adenoma (CXPA) is a malignant transformed variant of pleomorphic adenoma (PA). Generally it presents with a rapidly growing mass in the parotid gland within a preexisting PA or following surgical resection of PA. Mainstream treatment modality is surgical resection followed by radiotherapy if necessary. Facial nerve preservation and complete resection of the tumor are th...

2015
Victoria Solveig Young Ellen Viktil Else Marit Løberg Tone Enden

Pleomorphic adenoma of the parotid gland with metastases to the liver is a rare etiology of focal liver lesions, and there are no described pathognomonic imaging features. We report a patient who presented with a newly diagnosed rectal cancer and multiple cystic liver lesions suspicious of mucinous synchronous liver metastases. Following chemotherapy no reduction in the number or size of the li...

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