نتایج جستجو برای: parotid neoplasm

تعداد نتایج: 189246  

2014
Chung Su Hwang Chang Hun Lee Ahrong Kim Nari Shin Won Young Park Min Gyoung Park Do Youn Park

It is difficult to distinguish nodular fasciitis (NF) from other neoplasm of the parotid gland, especially pleomorphic adenoma (PA) by fine needle aspiration cytology. A 39-year-old female noticed a mass in the parotid region. The aspirate material showed cohesive parts composed of the cells that had oval or spindle-shaped nuclei and relatively abundant cytoplasm and some cells with plasmacytoi...

Journal: :jentashapir journal of health research 0
nastaran ranjbari department of pathology, imam khomeini hospital, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran neda hojat panah department of pathology, imam khomeini hospital, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of pathology, imam khomeini hospital, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-9106006032

discussion benign metastasizing pleomorphic adenoma is a rare and controversial but distinct clinical entity. although the definition of the term benign precludes metastatic disease, these tumors do not demonstrate any malignant features yet metastasized to distinct sites. it remains to be determined whether this benign metastasizing pleomorphic adenoma is really low grade salivary malignancy. ...

2013
Alexandre A. Sousa Giovanna R. Souto Isabela A. Sousa Ricardo A. Mesquita Ricardo S. Gomez Bruno C. Jham

Solitary fibrous tumor (SFT) is a rare spindle cell neoplasm that usually develops in the pleura and peritoneum. The head and neck region is involved in only 6% of the cases. Involvement of the parotid gland is a rare phenomenon, with only 24 cases reported in the literature. The aim of this study is to report an additional case of SFT affecting the parotid gland, and to review the literature o...

Journal: :International Journal of Head and Neck Surgery 2012

Journal: :Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 2007
Kevin C Welch John C Papadimitriou Robert Morales Jeffrey S Wolf

Sebaceous adenomas of the major salivary glands are uncommon tumors. Although sebaceous differentiation within the major salivary glands is a frequent histopathologic finding (approximately 20% to 42% of parotid glands), sebaceous neoplasms of salivary gland origin are not. A number of publications review the clinical and histologic features of sebaceous neoplasms, however, these reports focus ...

Journal: :Archives of Iranian medicine 2007
Kazem Khalkhali Mohammad-Reza Azizi Saeid Atighechi

The light microscopic and immunohistochemical characteristics of a case of fibrous histiocytoma of intermediate malignancy arising from the parotid gland are presented. This neoplasm is rare in this site and must be distinguished from other spindle cell tumors of the parotid gland, particularly those of epithelial and myoepithelial origins. Histologic characteristics similar to those displayed ...

2011
Divya Kota Nagappa Jayashree Krishnamurthy

Extra-skeletal Ewing’s sarcoma is a rare soft tissue malignant neoplasm, morphologically indistinguishable from skeletal Ewing’s sarcoma. The usual sites of involvement are the soft tissues of para-vertebral region, chest wall, and lower extremity. Extra-skeletal Ewing’s sarcoma is rare in the head and neck region and very few cases are reported in the parotid gland. The cytological features of...

Journal: :Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale 2007
D Hayashi J R Tysome E Boyei P Gluckman C Barbaccia

Sebaceous lymphadenoma is an unusual salivary gland neoplasm which is rarely correctly diagnosed pre-operatively in the parotid gland. Two cases of sebaceous lymphadenoma are presented in which, in common with most cases reported in the literature, the correct pre-operative diagnosis was not made. Sebaceous lymphadenoma rarely transforms into a malignant tumour. Fine needle aspiration cytology ...

Journal: :AJNR. American journal of neuroradiology 1986
P M Som M P Scherl V M Rao H F Biller

The ordinary lipoma is the most common neoplasm of mesenchymal origin. Only 13% of them arise in the head and neck region and most of these occur subcutaneously in the posterior neck. Rarely, they can develop in the anterior neck, infratemporal fossa, and in or around the oral cavity, pharynx, larynx, and parotid gland. Clinically, they can be confused with other benign lesions; however, CT all...

Atul Shrivastav, Harsh A. Shah Sanjay Gandhi Umang V. Patel

Epithelial myoepithelial carcinoma is a rare biphasic low grade neoplasm of salivary glands; it most commonly occurs in the parotid gland but can also arise in minor salivary glands. Here a case of 58-year-old female presented with left cheek swelling of one-year duration. CT scan revealed a localized submandibular salivary gland tumor mass not involving surrounding tissues. Histological examin...

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