舌下部に発生した異所性胃粘膜嚢腫の1例

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  • A case of heterotopic gastrointestinal sublingual cyst
  • ゼッカブ ニ ハッセイ シタ イショセイ イ ネンマクノウ シュ ノ 1レイ

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Heterotopic gastrointestinal cyst in the oral cavity is a rare congenital cystic lesion occurring predominantly in the anterior part of the tongue of infants 1, 2). However, this lesion has also been confirmed in adults despite its asymptomatic and slow growth 1, 2). Complete excision of the cyst wall is recommended to prevent recurrence 2). <br> In this report, we describe a rare case of heterotopic gastrointestinal sublingual cyst. The patient was a 21-yearold Japanese woman. A swelling in the sublingual region had been noticed since birth and was incised to discharge the internal fluid, but the swelling persisted. At age 18, the sublingual lesion was excised for a clinical diagnosis of sublingual ranula at the department of otorhinolaryngology in another hospital, but the swelling recurred. She visited our hospital because of a residual swelling and a fistula in the sublingual region. Because typical clinical and radiographic features were absent, it was difficult to make a correct diagnosis of sublingual cystic lesion, and the excised specimen was histologically diagnosed as a heterotopic gastrointestinal sublingual cyst.

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