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At least 397 records · Page 22Linked to original sources
PubMed1986

[Ultrastructure of the terminal vessels in squamous cell carcinoma of the human external ear. A transmission electron microscopy study].

Electron microscopic findings of vascular fine structure of the squamous cell carcinoma of the human auricle are reported. According to morphological criteria, the tissue was divided into three areas: non-infiltrated zone, transitional zone and centre of the tumor. In the non-infiltrated zone the vessels reveal the pattern of normal vessels of the skin. In the transitional zone endothelial cells bearing all signs of newly formed vessels can be detected as well as endothelial cells that show structural characteristics of severe cellular damage. In the tumour centre itself vessels are found with fenestrations and even true endothelial gaps. Interstitially located RBCs imitate the former outline of the vascular lumen. The observations are discussed and compared with the relevant literature.

Aged↗
PubMed1989

[Curietherapy of epithelioma of the external ear. A series of 140 patients].

Treatment with therapy--Cesium137--of skin epithelioma of the pinna on 140 patients is reported. For some extended lesions radiotherapy was applied first. Unlike most published series a low recurrence rate was observed, less than 5%. Moreover most of these recurrences can again be treated with a new brachytherapy session. Almost no case of radionecrosis was observed. The occurrence of cervical metastatic lymph nodes still remains a problem and bears a bad prognosis. Brachytherapy of the epithelioma of the pinna has a very high percentage of cure, even for lesions up to 4 cm. Radionecrosis was never observed.

Adult↗
PubMed1989

[Biopsy of the external ear in diabetology].

In the introductory part the authors pointed to the need for the application of the morphologic method which would make possible the estimation of the existence and degree of miocroangiopathic changes. Microangiopathic changes were observed on the material obtained by skin biopsy of the auricle and the reason for selecting this localization was explained. It was performed in the representative sample consisting of 441 patients with diabetes mellitus and 92 persons with disturbed glucose tolerance and the objective indicators for small blood vessel changes were confirmed by the analysis of the material obtained by the method described. The possibility of the quantification of the degree of these changes was at the same time presented and illustrated. Finally, the authors came to the conclusion that reproducibility of these quantifications was satisfactory. Thereby, they were of the opinion that in their further work they could compare described and quantificated changes in respect to individual vital characteristics of the investigated group, the existence of factors considered risky for the appearance of diabetes mellitus complications and the degree of their development.

Biopsy↗
PubMed1989

[Use of a temporoparietal fascial flap in difficult reconstructions of the external ear].

Temporo parietal fascial flap is a way of total ear reconstruction when there is not a sufficient quantity of available skin in auricular region. This flap very thin, supplied by superficial temporal vessels is located above the auricle and can cover the framework's convolutions. This technique has been well described by Burt Brent. Our experience is based upon 12 total ear reconstruction with this kind of flap. When there is an extreme skin shortage, but of good quality, we discuss the technique of skin expander.

Ear, External↗
PubMed1989

[Reconstruction of deformities of the external ear].

Microtia is a rare malformation. Reconstruction of microtia is not a routine operation because of its rarity of occurrence and the complex deformity. In this paper the indication for surgical treatment, technique, results and complications are discussed. Two different operation methods were used in our patients. A multiple-stage and a single-stage reconstruction procedure. We used autogenous rib cartilage. Five of the seven treated patients came to the follow-up examination. Reconstruction was performed 2 years ago in two cases and between 4 and 12 years ago in three cases. Our patients were content with the result in so far as they would be prepared to undergo treatment again. Carefully built rib framework is an essential prerequisite for a successful postoperative result. Microtia represents a greater psychological problem than a cosmetically imperfect result after reconstruction.

Adolescent↗