نتایج جستجو برای: parotid neoplasm
تعداد نتایج: 189246 فیلتر نتایج به سال:
We report an unusual, rare case of primary epithelioid rhabdomyosarcoma of a lymph node in the parotid basin. A 72-year-old man with a history of squamous cell carcinoma of the forehead and cheek had a 5-cm mobile nontender mass of the parotid tail and right level II region. A positron emission tomography/computed tomography scan confirmed a hypermetabolic soft tissue mass in the right parotid ...
Background Solitary fibrous tumor is an uncommon spindle cell neoplasm of unknown origin. It has been reported in many anatomic sites, with a rare occurrence in the head and neck region. Solitary fibrous tumors of the parotid gland are exceptional; their clinical and radiologic features are non specific, often mimicking more common salivary gland tumors. Pathologic examination and immunohistoch...
Angiosarcoma is a malignant vascular tumor that occurs mostly in the soft tissues, skin, trunk, and limbs. of parotid gland very uncommon rare tumor.Herein, we presented case 66-year-old man who was referred for lump his neck initial biopsy reported Castleman disease. After three months during which mass did not resolve, re-biopsy performed. The revealed neoplasm composed neoplastic spindle cel...
Pleomorphic adenoma (PA) is the most common neoplasm for both the major and minor salivary glands. While PA is occasionally associated with cystic change or hemorrhage necrosis, spontaneous infarction appears to be very uncommon. We report two unusual cases of extensive necrosis of PA; one occurred in the palate with the necrotic tumor mass slipping into the oral cavity. This phenomenon, possib...
INTRODUCTION Pleomorphic adenoma is the most common benign neoplasm of the salivary glands. Extensive lipomatous involvement of the tumor is, however, a very rare finding. CASE REPORT Herein, a rare case of lipomatous pleomorphic adenoma arising in the parotid gland of a 14-year-old Japanese woman is presented. CONCLUSION This is the sixth case of lipomatous pleomorphic adenoma in the Engli...
Case report A 71-year-old Caucasian female first presented in November 1977 with a painless swelling of the right parotid region of 9 months' duration. Examination demonstrated a pulsatile, mobile swelling situated just below the right angle of mandible, approximately 4 cm in diameter (Fig. 1). The swelling showed the sign of emptying. In addition, a right Horner's syndrome was noted. No bruit ...
Parotid gland tumours account for 80% of all salivary gland neoplasms, 20% of these are malignant, but in daily clinical practice most parotid masses are operated on before obtaining the final histological diagnosis. This clinical setting further complicates the critical point of parotid surgery, which is the management of the facial nerve. In the present study, data were evaluated referring to...
A case of acinic cell carcinoma of the right parotid gland metastasizing to the right iliac crest is presented. Generally, for this rare low-grade malignant salivary gland neoplasm, 20% of cases may have local recurrences whereas about 10% of cases have distant metastases. They may arise many years after the initial presentation of the original tumor. The most frequent locations are the cervica...
Myoepithelioma is an uncommon benign neoplasm that most likely occurs in the parotid gland. Extra-salivary myoepitheliomas are rare, with less than 10 cases reported in the sinonasal cavity. We present a rare case of benign myoepithelioma with recurrent behavior, abundant extensions to adjacent structures, and resistant to treat clinical course, which influenced the patient's quality of life fo...
Myoepithelioma is a rare benign neoplasm of salivary glands. Accounts for less than 1% of all salivary gland neoplasms. It is more common in parotid glands foIIowed by small salivary glands. Myoepithelioma once was considered as extreme variant of pleomorphic adenoma. But now many authors consider the myoepithelioma as distinct pathological entity as it i of myoepithelial cells and behaves more...
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