小児の上唇に発生した多形性腺腫の1例

概要

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Pleomorphic adenoma is the common neoplasm in the oral cavity. The usual location of this tumor is the parotid of the major salivary glands and the palate of the minor salivary glands;and this tumor rarely develops on the lips.Usually it appears between ages 20 and 50; few cases occur in childhood.<BR>We experiensed a case of pleomorphic adenoma on the upper lip of a child.The patient, a 11-year-old girl, visited our clinic with a complaint of a foreign mass on the upper lip. It was found by palpation to be size of the tip of ones little finger.It was easily movable, roundish and smooth.The tumor was removed completely under local anesthesia. The removed mass was oval and well encapsulated, and the cut surface was yellow-grey and solid. Microscopic findings showed the tumor consisted of sheets of glandular epithelial cells forming duct-like structures containing an eosinophilic secretion. Histopathological diagnosis was pleomorphic adenoma.<BR>The tumor has not recurred in the year since the operation.