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[Maxillofacial surgery and pathology].

This paper mentions the importance of the detail knowledge of pathology that a maxillofacial surgeon has to know previous planning and treatment of surgery.

Granuloma, Giant Cell↗

[Multicentric retrospective study on the carcinoma of lips and oral mucosa. Analysis of coherence between pre- and posttherapeutical categories of classification].

The coherence between prae- and posttherapeutical TNM findings had been checked up in a multicentrically registered patient material of 2,481 non-praetreated plate epithelium carcinomas of the lips and oral mucosa. Whereas the extension of the tumour has in the main been the same, the findings on lymph nodes had a trend showing essential deviations. In a two-dimensional examination of 851 histologically prepared preparations of lymph nodes, a prognostic relevance acc. to metastases had been registered for the characteristics palpation finding of the lymph node, tumour extension, tumour infiltration. Multidimensional analyses have to be realized.

Carcinoma↗

[Growth phenomena of jaw ameloblastomas].

Jaw ameloblastomas produce most frequently (62%) multilocular translucences. An unilocular translucence was observed in 28% of the cases. In both forms, secondary cysts were present. This radiomorphologic finding is of pathognomonic value. Conchiform or finger-shaped translucences were seen in 10% of the cases. Such radiographic changes were observed in ameloblastomas arising from the oral mucosa. The border of the radiolucent area was always sharply defined and had a lobulate or wreathed form. The ameloblastoma spreads in an expansive or invasive way. The bone destruction is in all probability caused by the acid phosphatase activity of the tumour. Bone transformation occurs simultaneously with bone destruction and might be regarded as a morphologic sign of the defence mechanism.

Acid Phosphatase↗