耳下腺内に発生した類皮嚢胞の１例

DOI 被引用文献1件 参考文献13件

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  • A case of dermoid cyst in the parotid gland.

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We report a case of dermoid cyst in the parotid gland. Intraparotid dermoid cysts are extremely rare, and it is often difficult to differentiate these lesions from other cystic lesions. A 38-year-old woman visited our department because of a swelling in the right parotid region. Physical examination revealed two masses in the parotid gland. These masses were preoperatively diagnosed as dermoid or epidermoid cysts in the parotid gland on sialogramcomputed tomography (CT) and magnetic resonance imaging (MRI). Both cysts were removed surgically. One was located in the superficial lobe, and the other was located in the deep lobe. Histopathologically, the wall of the former cyst was lined by a thin layer of fibrous connective tissue, whereas, the wall of the latter was lined by stratified squamous epithelium with sebaceous glands and hair follicles. Sialogram-CT and MRI were useful for preoperative diagnosis of this case.

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