نتایج جستجو برای: parotid neoplasm
تعداد نتایج: 189246 فیلتر نتایج به سال:
OBJECTIVE This contemporary review aims to categorize the disease entities that cause bilateral parotid enlargement and to develop a question-based algorithm to improve diagnosis of bilateral parotid masses. DATA SOURCES A PubMed search for bilateral and parotid showed 818 results. Of these, 68 relevant studies were reviewed to compile a list of disease processes that can cause bilateral paro...
Warthin's tumor is the second most common benign neoplasm of the parotid. Most of cases are represented by a single localization, while only a small percentage of patients presents bilateral lesions or unilateral multifocal pattern. Warthin's tumor has an excellent prognosis due to the low rate of recurrence after surgical treatment. Malignant transformation occurs in less than 1% of cases. The...
Neoplasm from the accessory parotid glands (APG) rarely occurs, and its malignancy rate is higher than other salivary glands. The B-cell lymphoma APG rare, with less 2% of all in APG. mucosa-associated lymphoid tissue (MALT) lymphoma, a subtype tends to be localized disease an indolent clinical course. It very rare for MALT develop bilaterally without autoimmune disease. A 43-year-old male pres...
Introduction: Schwannoma is an uncommon benign neoplasm which in is found in head and neck in 25-48% of the cases. This tumor arises from Schwann cells and nerve sheath and asymptomatic swelling is the chief complaint of this tumor. Although aspiration is performed for such cases, the nature of tumor can be defined only after histopathologic examination. In fact, Schwannoma diagnosis is difficu...
Myoepithelioma is a rare neoplasm of the salivary glands, generally occurring in the parotid gland and less often in the minor accessory salivary gland of the oral cavity. The histological appearance includes solid, myxoid and reticular growth patterns. Vimentin and S-100 protein are very sensitive but non-specific immunohistochemical markers of neoplastic myoepithelium. Conservative surgery is...
A unique variant of the sebaceous lymphadenoma, so-called unilocular cystic sebaceous lymphadenoma, occurred in a 28-year-old male with a painless swelling in the left parotid region. The recognition of key histological features will readily allow differentiation of this unique neoplasm from its benign and malignant mimics. To our knowledge, out of 21 cases of sebaceous lymphadenoma reported, o...
Myoepithelioma is a rare neoplasm of the salivary glands, generally occurring in the parotid gland and less often in the mi-nor accessory salivary glands of the oral cavity. It is known to be a rare entity occurring at unusual locations, which makes it difficult to diagnose. Such a rare case of myoepithelioma in salivary glands present at an unusual location around the left orbit is presented h...
BACKGROUND Mycobacterial infection of the parotid gland is rare even in countries where the disease is rife. Because patients do not have specific symptoms of tuberculosis and tuberculosis of the parotid gland frequently presents as a neoplasm, most patients undergo parotidectomy. PATIENTS In this text we present a case report and the review of 20 well documented cases from the literature. Th...
Pleomorphic adenoma, also known as mixed tumor, is a benign tumor which typically presents as a painless and persistent mass. The majority of pleomorphic adenomas involve the salivary glands, most commonly the parotid gland. Other sites include breast and skin. It is a rare tumor in the vulva. In this article we are reporting a case of pleomorphic adenoma of labia with characteristic pathologic...
Adenoid cystic carcinoma is a malignant neoplasm arising from the salivary glands. The most striking feature of this tumor is that it is locally aggressive, with perineural invasion, tendency to metastasize, high recurrence rates. The parotid gland is the most commonly affected site in the head and neck region, tongue being relatively rare. The current study presents a rare case of 6 years old ...
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