上唇に発現したいわゆる皮膚混合腫瘍の 1 症例

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So-called mixed tumor of the skin is a benign neoplasm of the sweat glands that appears to be composed of a mixture of epithelial and mesenchymal tissues. It is usually located on the skin of the face and appears as an asymptomatic, solitary, firm interdermal or subcutaneous with a slow growth pattern. Histologically, the growth is made up of closely packed ductal structures and individual epithelial cells embedded in a distinctively myxomatous stroma which often shows chondroid areas. We have recently experienced a case of so-called mixed tumor of the skin in the left upper lip region of a 37-year-old woman and reported on it with some comments based on the literature. Clinical examination revealed a firm, painless, mass located on the left side of the anterior surface of the upper lip. The mass was extirpated using an intraoral approach under local anesthesia. The gross specimen consisted of a single piece of tissue measuring about 8×7×7mm. The cut surface revealed a well circumscribed, white-gray color. Histological sections were stained with hematoxlin-eosin, periodic acid-schiff, alcian-blue, toluidine-blue. In addition, immuno-histochemical study were stained with the antibodies to s-100 protein, carcinoembryonic antigen, keratin to speculate the differentiation of the tumor cells. It was diagnosed as so-called mixed tumor of the skin. The prognosis is fairly good after surgical treatment and there is no recurrence after one year and eight months.
九州歯科学会の論文
1990-02-25

上唇に発現したいわゆる皮膚混合腫瘍の 1 症例

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