نتایج جستجو برای: parotid neoplasms
تعداد نتایج: 502001 فیلتر نتایج به سال:
CASE REPORT Primary low-grade fibromyxoid sarcoma (LGFMS) is an extremely rare tumour of the salivary glands and arises from undifferentiated pluripotential mesenchymal cells. We report a case of a huge (17 x ll x 10 cm) primary LGFMS of the parotid gland of a 57-year-old woman. Clinically, a 12x8 cm firm, non-tender, left parotid mass was observed, facial nerve function was not impaired and no...
Pediatric salivary gland disease represents a very small portion of the pathology that we see among children and as such, it represents a very small part of what head and neck surgeons treat. The majority of salivary gland masses occur within the parotid gland [1-4]. Parotid gland lesions are infrequent in children. Less than 5% of all salivary gland neoplasms occur in this population and less ...
metastasize to the parotid lymph nodes2. Extremely rare neoplasms in the head-and-neck region that have been reported to metastasize to the parotid gland include malignant hemangiopericytoma, atypical fibroxanthoma, Merkel cell carcinoma, epithelioid hemangioendothelioma, and chondrosarcoma3–5. Parotid gland metastases from carcinomas in sites not in the head and neck are rare. Among the histol...
Oncocytomas are a group of rare neoplasms occurring in the parotid gland and account for less than 1% of all salivary gland tumors. Oncocytoma is a benign tumor composed of oncocytes with many hyperplastic mitochondria, usually presenting a solitary nodule. We reported a rare case of a slow-growing parotid oncocytoma in a 73-year-old woman who presented with a palpable mass in the left infra-au...
Accessory parotid gland (APG) tumors account for 1% to 7% of all neoplasms but are more likely be malignant than main tumors. Management APG entails surgical excision. Four primary approaches resection have been described in the literature with varying facial nerve outcomes. We report a case 4-cm pleomorphic adenoma utilizing transoral approach excision without postoperative injury. A is known ...
Epithelial myoepthial carcinoma (EMEC) is rare, low grad tumor with epithelial and myoepithelial components frequent local recurrence, also called glycogen rich adenoma (clear cell pattern), myoepithelioma (spindle plamocytiod patterns), (if only differentiation marked cytologic atypia). Occurs most frequently in the major salivary glands accounts for approximately 1% of all gland neoplasms tha...
BACKGROUND Improved survival seen in Acute Lymphoblastic Leukemia (ALL) cases has led to increased reports of second malignant neoplasms. CASE CHARACTERISTICS A 12-year-old female treated for ALL using UK ALL XI protocol nine years back presented with progressively increasing pre-auricular swelling. OBSERVATION Investigations revealed it to be a Mucoepidermoid carcinoma. MESSAGE Mucoepide...
Basal Cell Adenocarcinoma (BCAC) is a rare malignancy, only accounting for approximately 2% of all salivary neoplasms. Considered the malignant counterpart basal cell adenoma, it most commonly presents at 60 years age without gender predilection. Sites involvement frequently includes parotid gland, but sites in minor glands, nasopharynx, buccal mucosa, and tongue have also been reported. Often ...
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