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Biomedical subjects

N Tatematsu

Publications and source records attributed to N Tatematsu.

33 records · Page 2Linked to original sources
PubMed1990

An infected congenital commissural lip fistula. Report of a case.

A case of infected congenital commissural lip fistula is presented. It appeared as a cheek swelling associated with inflammation due to infection. This case was treated with antibiotics and surgical drainage through the fistula. Our experience suggests that the possibility of infection of the fistula should be considered particularly in cases involved with angular stomatitis and/or scratching injury close to the commissure of the lips.

Adult↗
PubMed1990

Distribution of factor XIIIa-containing cells and collagenous components in radicular cysts: histochemic and immunohistochemic studies.

The distribution of subunit A of Factor XIII (FXIIIa) and of collagenous components was investigated by the avidin-biotin-peroxidase complex (ABC) method for FXIIIa and by the Sirius red F3BA method, respectively, in 43 cases of radicular cysts. Besides the covering epithelial layer, the radicular cyst wall was composed of the following three layers: an inner granulomatous layer, an outer fibrous connective tissue layer, and an intermediate layer. In each layer, a positive reaction for FXIIIa was observed in certain connective tissue cells. These FXIIIa-containing cells were few in number in the inner layer where collagenous components were also sparse. In the slightly to moderately fibrous intermediate layer, these cells markedly increased in number and were dendritic or stellate in shape. In the outer densely fibrous connective tissue layer, they decreased slightly in number and were slender and spindle-shaped. The results obtained in the present study indicate the close relationship between the distribution of FXIIIa-containing cells and of collagenous components. Such a relationship suggests that these cells play an important role in the process of fibrosis occurring in the radicular cyst wall.

Collagen↗
PubMed1989

Factor XIIIa-containing cells and fibrosis in oral and maxillofacial lesions: an immunohistochemical study.

The distribution of subunit A of blood coagulation factor XIII (FXIIIa) was investigated by the avidin-biotin-peroxidase complex (ABC) method in various oral and maxillofacial tissues. These tissues were from normal tongue, gingiva, lip, and submandibular gland, and from Dilantin gingival hyperplasia (one case), pyogenic granuloma (three cases), peripheral fibroma (four cases), squamous cell carcinoma (seven cases), chronic sclerosing submandibular adenitis (two cases), and fibrous dysplasia of the mandibular bone (one case). The distribution of collagenous components was examined in the same tissues by means of the Sirius red F3BA method. By means of the ABC method, FXIIIa was detected in the cytoplasm of certain connective tissue cells in each of the tissues examined. These FXIIIa-containing cells were sparse in the normal tissues but evidently abundant in the fibrous connective tissue of inflammatory and neoplastic lesions. In the present study, the close relationship between the distribution of FXIIIa-containing cells and that of collagenous components is demonstrated. The role that FXIIIa-containing cells play in the process of fibrosis is discussed.

Collagen↗
PubMed1989

The platysma myocutaneous flap for oral reconstruction. Experience with MacFee's cervical incision.

The present study was performed to demonstrate and evaluate the effectiveness of the Platysma Myocutaneous Flap in conjunction with MacFee's cervical incision (MacFee, 1960) for reconstruction after oral cancer excision. Ten squamous cell carcinoma cases were provided for postoperative evaluation of tongue movement and aesthetic problems of the cervical skin. It was found that the thickness of the skin island was adequate for covering the oral defects and was not a hindrance to proper postoperative function. MacFee's incision improved the condition of the scar caused by flap elevation. The procedure for preparing the muscle pedicle beneath the cervical skin tunnel was carried out without much difficulty by carefully preparing the surgical field.

Adult↗