口蓋陥凹を伴った舌多発性平滑筋腫性過誤腫の1例

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The leiomyomatous hamartoma is uncommon in the oral cavity. We recently experienceda case of multiple hamartomas of the tongue with palatal recess in a 15-day-oldboy. The two hamartomas were located on the dorsal surface of tongue along the medianline as polypoid masses measuring 10× 10× 4 mm and 4× 3mm. The two masses were removed under general anesthesia. Microscopically, the posteriormass was composed of heterotopic smooth muscle fibers interspersed with salivary glandtissue, blood vessels, lymphatic vessels and adipose tissue. Myxomatous fibrous tissue wasobserved in the subepithelial area of the mass. The anterior mass was an ill-defined focus composed of smooth muscle and blood vesselwith mucosal cover. Histopathological diagnosis was multiple leiomyomatous hamartomas of the tongue. The postoperative course was uneventful. Neither recurrence nor metastasis occured in these one year after the surgical operation.This report is the third case of multiple leiomyornatous hamartomas of the tongue found inthe literature.
社団法人日本口腔外科学会の論文