what is pleomorphic adenoma of the salivary gland?
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Pleomorphic adenomas are benign salivary gland tumors, which predominantly affect the superficial lobe of the parotid gland. The “pleomorphic” nature of the tumor can be explained on the basis of its epithelial and connective tissue origin. The tumor has a female predilection between 30–50 years of age.
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Parotid glands, which are the largest, are inside each cheek. They sit above your jaw in front of your ears. When one or more of these glands is infected, it's called parotitis.
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Carcinoma ex pleomorphic adenoma (ca ex PA) is a type of cancer typically found in the parotid gland. It arises from the benign tumour pleomorphic adenoma. Its prognosis depends on the stage. Early tumours have essentially a benign behaviour.
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Procedure overview Often the adenoids are removed at the same time as tonsils. This procedure is known as an adenoidectomy. The adenoids are glands similar to the tonsils, but located above the soft roof of the mouth. The tonsils and adenoids are thought to fight infections.
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['The major salivary glands (parotid, submandibular, and sublingual glands), associated with the oral cavity through independent excretory ducts. ... ', 'The exocrine pancreas secretes a combined aqueous and enzymatic product draining into the duodenum.']
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Pheochromocytoma, a rare, usually benign, tumor of the adrenal glands resulting in the glands secreting excessive amounts of the hormones adrenaline and noradrenaline (catecholamines). This causes variable symptoms such as high blood pressure, sweating, headache, chest pain and anxiety.
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The submandibular lymph nodes sit between the submandibular salivary glands, which are underneath the tongue, and the mandible, or lower jawbone. Occasionally one or more of the lymph nodes may be embedded deep within the salivary gland.
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One of the most common problems of the parotid glands is mumps, which is an acute virus infection that gives pain and swelling usually on both sides. The ducts of parotid glands can also get blocked, leading to swelling, infection and pain.
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Minor Salivary Glands Minor salivary gland tumors are extremely rare. However, they are more likely to be cancerous than benign. Cancers of the minor salivary glands most often begin in the roof of the mouth.
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Treatment. Overall, the mainstay of the treatment for salivary gland tumor is surgical resection. Needle biopsy is highly recommended prior to surgery to confirm the diagnosis. More detailed surgical technique and the support for additional adjuvant radiotherapy depends on whether the tumor is malignant or benign.
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You have two parotid glands, which are situated on either side of your face between the back part of the lower jaw and the ear. The ducts of each gland open inside the mouth in the upper cheek on both sides (you can feel this as a small lump and can even see saliva dribble out of it if you are patient).
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A mucous cyst, also known as a mucocele, is a fluid-filled swelling that occurs on the lip or the mouth. The cyst develops when the mouth's salivary glands become plugged with mucus. Most cysts are on the lower lip, but they can occur anywhere inside your mouth.
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Myoepithelial cells (sometimes referred to as myoepithelium) are cells usually found in glandular epithelium as a thin layer above the basement membrane but generally beneath the luminal cells. These may be positive for alpha smooth muscle actin and can contract and expel the secretions of exocrine glands.
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Cystic neoplasms of the pancreas include serous cystadenomas, mucinous cystadenomas, intraductal papillary mucinous neoplasm (IPMN), and cystically degenerated pancreatic neuroendocrine tumors. This section will review the work up, diagnosis and management of each of these types of pancreatic cysts.
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Hypersalivation, also known as sialorrhea or ptyalism, is when a person has too much saliva in their mouth. It can result in saliva from the mouth spilling over the bottom lip, known as drooling. Depending on the cause, hypersalivation can either be constant or intermittent.
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A rare condition, parotid cysts account for approximately five percent of salivary gland tumors. typically not attached to the facial nerve. Because parotid cysts continue to grow over time and are prone to infection, it is important to have them surgically removed to prevent long-term complications.
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Salivary glands are made up of secretory acini (acini - means a rounded secretory unit) and ducts. There are two types of secretions - serous and mucous. The acini can either be serous, mucous, or a mixture of serous and mucous.