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The Korean Journal of Pathology 1996;30(6): 551-553.
Benign Lymphoepithelial Cyst: A case report.
Jin Haeng Chung, Gyeong Hoon Kang, Je G Chi
Department of Pathology, Seoul National University College of Medicine, Seoul, Korea.
An intraparotid benign lymphoepithelial cyst is a rare disease characterized by unilateral painless swelling of parotid region. The histogenesis is controversial. Surgical excision is recommended for diagnosis and curative treatment. We present a case of benign lymphoepithelial cyst arising in a patient with neurofibromatosis. A 46-year-old woman presented with a slowly growing multilocular cystic mass in the left cheek. The cystic mass measured 4 cm in maximal outer diameter and the cystic wall was thick and yellowish pale to gray, soft with well circumscribed margin. Microscopically, the multilocular cyst was lined by stratified squamous epithelium for the most part and underlying lymphoid tissue aggregates with follicles and sharply demarcated from adjacent salivary parenchyma which is of normal appearance and without lymphoid aggregates. Since this lesion is absolutely benign, it is important to separate this benign cyst from cystic salivary gland tumors.
Key Words: Benign lymphoepithelial cyst; Parotid gland; Neurofibromatosis
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