scholarly journals Lipoma versus benign symmetric lipomatosis with localization in oral and maxillofacia region

2021 ◽  
Vol 3 (59) ◽  
pp. 56-63
Author(s):  
Daniel Sirbu ◽  
◽  
Ilie Suharschi ◽  
Dumitru Sirbu ◽  
◽  
...  

Benign tumors of fat tissue with localization in oral and maxillofacial region are an ongoing problem, with a high frequency and various manifestation causing morphofunctional and aesthetic discomfort for the patient. The article is based on comparative analysis of 2 patients that have benign tumors of the adipose tissue in the OMF region, one patient diagnosed with solitary lipoma and over patient with benign symmetric lipomatosis with anterior cervical localization. The specialized literature offers 2 methods of lipomatous tumor removal Liposuction and Lipectomy, in the article we describe the effectivity of the 2 methods. This study proved that benign tumors of fat tissue can have common morphological origin but different progression and clinical features. Early addressing of the patients and early detection diminishes the duration of the surgery, morbidity and rehabilitation of the patient.

Author(s):  
Silvia Railean ◽  
◽  
Cristina Postaru ◽  
Gheorghe Granciuc ◽  
Marcel Volovei ◽  
...  

Post-surgical rehabilitation of children with benign tumor injuries of the jaws. Introduction. Tumors in children have a specific and constantly current topic. With the advent of new diagnostic technologies, there is an increasing incidence of tumors in children. The peculiarities of the growth and development of the child from newborn to adolescent highlight new and new problems of morphofunctional and psycho-emotional rehabilitation, both immediately after treatment and at a distance. The purpose of the study was to find out the problems that appear in children after the surgical removal of benign tumors from the jaw region. Results. During 2020 year, 66 children with benign tumors of the jaws were found. The children underwent surgical treatment to remove the tumors. It has been found that tumors located in the mandible are two times more common than those located in the upper jaw. The period of morphofunctional rehabilitation of the child after the removal of the tumor depending on the growth of the tumor and the peculiarities of the dentomaxillary system, we have three categories of children. Children with tumor removal in the block. Children with tumor removal by curettage. Children with palliative tumor removal. Rehabilitation methods include restoring the dental arch with removable applines. In group two, remodeling the growth of the jaws with the positioning of the permanent teeth. Group three includes tooth repositioning, jaw remodeling, and tooth eruption stimulation. Conclusion. Tumors with localization in the jaws during the growth and development of the child require complex rehabilitation, immediately after treatment and at a distance, with a personalized character depending on the postoperative defects and the age of the child.


Author(s):  
E. Faghand ◽  
S. Karimian ◽  
E. Mehrshahi ◽  
N. Karimian

Abstract A new simple computational tool is proposed for the synthesis of multi-section coupled-line filters based on combined modified planar circuit method (MPCM) and transmission line method (TLM) analysis, referred to as MPCM-TLM. Due to its fundamentally simple architecture, the presented tool offers significantly faster optimization of coupled-line filters – for exactly the same initial simulation set-up – than other costly commercially-available tools, giving equally reliable results. Validity and accuracy of the proposed tool have been verified through the design of 3rd, 5th, and 7th order coupled-line filters and comparative analysis between results obtained from the proposed approach and the high-frequency structure simulator. A remarkable 99% time reduction in the analysis is recorded in the case of 7th order filter using the proposed tool, for almost identical results to HFSS. Therefore, it can be confidently claimed that the proposed technique can be used as a reliable alternative to existing complex, costly, processor-intensive CAD tools.


Author(s):  
Ana Carolina Velasco Pondé de Sena ◽  
José Alcides Almeida de Arruda ◽  
Fernanda Pereira Delgado Costa ◽  
Ana Paula Vilaça Lemos ◽  
Fabiana Maria Kakehasi ◽  
...  

Author(s):  
Iftikhor Obidjonovich Nigmatov ◽  
Shukhrat Abdujalilovich Boymuradov ◽  
Jamolbek Abdukakhkhorovich Djuraev ◽  
Yusupov Shokhrukh Shukhratovich

Frequenz ◽  
2018 ◽  
Vol 72 (5-6) ◽  
pp. 197-208 ◽  
Author(s):  
Pramod Kumar ◽  
Santanu Dwari ◽  
Shailendra Singh ◽  
Ashok Kumar ◽  
N. K. Agrawal ◽  
...  

AbstractIn this paper various shapes of DR antennas excited by common feed have been proposed and successfully implemented for wideband applications. Proposed structures are Hemispherical, Arrow-shaped and Triangular DRA, while common excited feed is inverted trapezoidal conformal patch. These shapes of DR offer significant optimization in several parameters such as impedance bandwidth, peak gain and bandwidth per unit volume of the antenna. By using inverted trapezoidal patch feed mechanism an impedance bandwidth (VSWR<2) of about 63 % for hemispherical shape, 66 % for arrow shape, and 72 % for triangular shape DRA has been achieved with maximum bandwidth per unit volume. Proposed wideband DRAs i. e. triangular, hemispherical, and arrow shapes of DR antennas cover almost complete C-band (4 GHz–8 GHz) frequency spectrum of microwave. The average peak gain within the operating band for hemispherical, arrow, and triangular shape DRA are about 5, 5.4, and 5.5 dB respectively. A comparative analysis of proposed structures for various antenna parameters has been analyzed by HFSS (High-Frequency Structure Simulator) and validated by experimental results.


2015 ◽  
Vol 9 (11-12) ◽  
pp. 795 ◽  
Author(s):  
Ilker Akarken ◽  
Hüseyin Tarhan ◽  
Rahmi Gökhan Ekin ◽  
Özgür Çakmak ◽  
Gökhan Koç ◽  
...  

Introduction: We examined the relationship between stone disease and the amount of visceral adipose tissue measured with unenhanced computed tomography (CT).Methods: We included 149 patients with complaints of flank pain and kidney stones detected by CT, from August 2012 to April 2013. In addition, as the control group we included 139 healthy individuals, with flank pain within the same time period, with no previous history of urological disease and no current kidney stones identified by CT. Patients were analyzed for age, gender, body mass index, amount of visceral and subcutaneous adipose tissue, and serum level of low-density lipoprotein and triglyceride.Results: There were no differences between groups in terms of gender and age (p = 0.27 and 0.06, respectively). Respective measurements for the stone and control groups for body mass index were 29.1 and 27.6 kg/m2; for visceral fat measurement 186.0 and 120.2 cm2; and for subcutaneous fat measurements 275.9 and 261.9 cm2 (p = 0.01; 0.01 and 0.36, respectively). Using multivariate analysis, the following factors were identified as increasing the risk of kidney stone formation: hyperlipidemia (p = 0.003), hypertension (p = 0.001), and ratio of visceral fat tissue to subcutaneous fat tissue (p = 0.01). Our study has its limitations, including its retrospective nature, its small sample size, possible selection bias, and missing data. The lack of stone composition data is another major limitation of our study.Conclusion: The ratio of visceral to subcutaneous adipose tissue, in addition to obesity, hyperlipidemia, and hypertension, was identified as an emerging factor in the formation of kidney stones.


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