Morphometry of the internal iliac artery in different ethnic groups.

The internal iliac artery supplies the pelvic organs, as well as the osseous and muscular components of pelvic walls. The goal of our study is a statistical analysis of the internal iliac artery and its branches compared to the data recorded in the Literature. A total of 100 internal iliac arteries were dissected, 60 arteries from male and 40 from female individuals. The results point out differences in Length and caliber between males and females. Comparative analysis of our data with similar studies shows differences in the length of the internal iliac artery in Romanian patients compared to English and Japanese people. In conclusion, our results suggest a vascular variability in different ethnic groups.

Analysis of mandibular variability in humans of different geographic areas.

The mandible is the single mobile bone of the skull. It develops from the sixth week of the intrauterine life. The aim of our study is to confirm the variability of different mandibular landmarks in humans of different geographic areas. A number of 100 young persons from different geographic areas (Europe, Middle Orient, Asia and Africa) were selected. We used the classical measurement with the metric band and Baudeloque compass and analysed 50 cephalograms in frontal and lateral views. The focus of our measurements were the opening of the mandibular angle (gonion), ramal length and width, condylar diameters and the gonion-menton distance. In the European specimens, the opening of the mandibular angle is smaller than in the Asians. Africans had a lower value of the mandibular angle than Asians. Significant differences appeared in the gonion-menton distance measurements, as well. In conclusion, there is a positive correlation between the mandibular angle and the menton-gonion distance, respectively.

Histochemical evaluation of angiogenesis in endometrial adenocarcinoma.

The formation of new vessels from endothelial cells, termed angiogenesis, is a complex process that is controlled by numerous paracrine factors. Vacularization of tumor tissue is a prerequsite for tumor growth and enables the dissemination of tumor cells throughout the body. Angiogenesis is classically assessed by counting the vessels or clusters of endothelial cells after selective immunohistochemical staining. In this study, vascularization of tumor tissue was evaluated quantitatively in 36 cases of stage I endometrial adenocarcinoma. The goal of this study was to evaluate whether the microvessel density correlates with the invasion potential of endometrial adenocarcinoma. The results show an increase in the number of endothelial cells at different stages in endometrial adenocarcinoma stage I and a strong positive correlation between the endothelial-to-stromal ratio and tumor grading.

Morphometric evaluation of the frontal sinus in relation to age.

To investigate the development of the frontal sinus size during life, we studied the planar morphometry in 60 frontal radiographs of patients of different age and gender. A professional software (Bersoft Image 4.02) was used to measure the frontal area of the right and left frontal sinuses on radiographic images. A frontal sinus was already evident in 4-year-old children. Unilateral or bilateral absence of the frontal sinus was seen in 5% of cases. The size of the sinusal area increases up to 19-year-old patients, synchronous with general craniofacial growth. In adults, individual differences in size and shape occurred in relation to environmental factors. In some elderly patients, osseous resorption led to an enlargement of the frontal sinus that might complicate surgical procedures performed in this area.