Juvenile cemento-ossifying fibroma: a case report using modified Gallego’s staining

Juvenile cemento- ossifying fibroma is a rare benign but locally aggressive tumour with high recurrent potentials. The present study reports a case of juvenile aggressive ossifying fibroma involving the maxilla of a 6year old boy reported with a chief complaint of painless swelling over right side of the cheek since six months without any significant etiological factor. Modified gallego’s staining had been used to differentiate hard tissue deposits in the lesional tissues which have not been implicated so far in any fibroosseous lesions which makes this report unique

Quantitative Evaluation of Macrophage Expression Using CD68 in Oral Submucous Fibrosis: An Immunohistochemical Study

Background: Macrophages are important cells for the innate immunity. Circulating monocytes are attracted to tissues by chemotactic factors and become macrophages under the influence of their microenvironment. Several studies suggested that local and systemic upregulation of fibrogenic cytokines and downregulation of antifibrotic cytokine are central to the pathogenesis of oral submucous fibrosis (OSMF). Currently, there have been no attempts made to elucidate the presence and role of macrophages in OSMF. Aim: Our aim was to study the expression of CD68 in OSMF patients and to investigate the possible correlation of macrophages using CD68 in various histopathological grades of OSMF. Subjects and Methods: A prospective case–control study which included 40 patients was conducted after obtaining informed consent and Ethical Committee clearance. Ten cases were normal control and thirty cases had OSMF. Biopsy was performed and a quantitative study of macrophages was done using CD68 antigen and was immunohistochemically localized. Statistical analysis was carried out using the Statistical Package for Social Sciences (SPSS) 17.0 version (SPSS Inc., Chicago, IL, USA). Results: OSMF was observed in male patients of a younger age group. The macrophage number in the patients of intermediate and advanced stage of OSMF was higher than that of the controls which was statistically significant (P < 0.05). Conclusion: The findings of this study suggest that CD68 plays a vital role in the pathogenesis of OSMF and can be regarded as a useful marker for assessing the progress of the disease.Keywords: CD68, Macrophage, Oral, Submucous fibrosi

Privacy Preserving of Data Files & Audio / Video Encryption –Decryption Using AES Algorithm

Recently in many areas like facebook , watsapp and many more social networking site many users upload their personal data, video ,voice recording. This paper proposed and idea of encryption – decryption of any file which user s going to upload on site. The specific site which are providing such kind of functionality needs to adopts this method to secure user data for privacy preserving.So that any hackers or indruder can not directly hike your data. If in exceptional cases someone even hacks the data they will not get the actual file they will only get the encrypted file withoud having a decrypt key for the data. So they never see an original file.This will improve the data security over internet uses. The proposed system wiil used a special Advanced Encryption Standard, also known by its original name Rijndael for secure encryption decryption of audio ,video as well as data files

Evaluation of Mitotic Figures and Cellular and Nuclear Morphometry of Various Histopathological Grades of Oral Squamous Cell Carcinoma: Comparative study using crystal violet and Feulgen stains

Objectives: The objectives of this study were to quantitatively estimate the number of mitotic figures (MFs) and evaluate the cellular and nuclear features of various histological grades of oral squamous cell carcinoma (OSCC) using Feulgen and 1% crystal violet stains. Methods: This case-control study took place at the Dr D. Y. Patil Dental College & Hospital in Mumbai, Maharashtra, India, between June and December 2016. A total of 51 samples were retrieved from the hospital archives. Of these, 15 well-differentiated, 15 moderately-differentiated and six poorly-differentiated OSCC samples formed the case group while 15 samples of normal gingival mucosa constituted the control group. Each sample was dyed using Feulgen and 1% crystal violet stains and the mitotic count, nuclear area (NA), cellular area (CA), nuclear perimeter (NP), cellular perimeter (CP) and nuclear-to-cytoplasmic (N/C) ratio was calculated using computeraided morphometry techniques. Results: The number of MFs visible per field was significantly higher in Feulgen-stained sections as compared to those stained with crystal violet (P = 0.050). In addition, the NA, NP, CA and CP values and N/C ratios of samples in the experimental group increased significantly in accordance with an increase in OSCC grade (P <0.001). Conclusion: The Feulgen stain is more reliable than 1% crystal violet in terms of the selective staining of MFs. Moreover, the findings of this study indicate that computer-based morphometric analysis is an effective tool for differentiating between various grades of OSCC. Keywords: Crystal Violet; Feulgen Stain; Mitotic Index; Image Cytometry; Squamous Cell Carcinoma; Oral Cancers

Blunt abdominal trauma: the experience in rural India and review of literature

Background: Blunt Abdominal trauma is one of the most common injuries caused due to road traffic accidents. The rapid increase in number of motor vehicles and its aftermath has caused rapid increase in number of victims due to blunt abdominal trauma. As the care of patients with blunt abdominal injuries is largely a surgical responsibility and abdominal injuries involving major hemorrhage from solid viscera constitute surgical emergencies. Abdominal blunt traumas represent a real diagnostic and therapeutic challenge to even a most experienced surgeon, thereby representing importance of its study. Early diagnosis and effective management help in decreasing mortality in blunt abdominal trauma.Methods: Prospective study of 50 patients admitted to the institute with history of Blunt Abdominal Trauma. After initial resuscitation of the patients, thorough assessments for injuries were carried out in all the patients. Documentation of patients, which included identification, history, clinical findings, diagnostic test, operative findings, operative procedures and complications during the stay in the hospital were all recorded on a Performa specially prepared. The management was decided depending upon history, clinical examination and investigations.Results: Males were predominantly affected, and most cases were between the age group of 21-40 years (76%). Majority of the patients (90%) presented with the complaint of abdominal pain followed by abdominal distension (56%). 36(60%) patients were managed conservatively while operative interventions were required in 24(40%) patients. The common surgeries performed in the patients included splenectomy, primary closure of perforation and resection and anastomosis of bowel. Majority of the patients (80%) were discharged within 20 days of admission. The mortality in present study was 13.3%.Conclusions: Blunt Abdominal Trauma is one of the important causes of morbidity and mortality in young adults. Immediate resuscitative measures, management of associated injuries and appropriate operative intervention are important parts of management of such cases

Odontoblasts in health and disease with an additional note on its three-Dimensional histological perspective

Teeth are considered to be the prime organs for mastication, speech, and esthetics. The basic structure of tooth involves enamel, dentin, and pulp. Each of these is formed by specialized structures during the various phases of tooth development. One of such specialized structures forming dentin of the tooth are odontoblasts. Being present at the periphery of the pulp chamber, they are in close contact with dentin through cytoplasmic extensions which travel into the entire length of dentin through dentinal tubules. In addition to dentin formation, they play a vital role in performing the various functions of the tooth including nerve sensation. They are functionally active throughout the life span of a healthy tooth and are subjective to numerous injuries causing various oral lesions. This review aims to collect the information with an additional note on the role of odontoblasts and their characteristics in a healthy and diseased tooth structure, their significance in endodontics and three-dimensional (3D) histological means

Oral leukoplakia: Transmission electron microscopic correlation with clinical types and light microscopy

Background: Leukoplakia, is a precancerous lesion that is most commonly encountered in the oral cavity. The grade of dysplasia is presumed to be the most important indicator of malignant potential. There are many promising aspects in advanced methods for the evaluation of oral precancer and cancer. Among these methods, electron microscopic examination predicts the true biologic potential more accurately than conventional histology and has some success in the early detection of potentially malignant lesions. It has been reported in the literature that there is some correlation between clinical, histopathological, and transmission electron microscopic features. Materials and Methods: In this cohort study (prospective research), from the total of 9 subjects, 3 had homogenous leukoplakia, 3 had ulcerative type of oral leukoplakia, and 3 had nodular type of oral leukoplakia. Two patients were selected as control patients. Transmission electron microscopic examination was carried for all the cases and controls. All the findings were correlated with clinical features and light microscopy. Results: Clinically and histologically, mild leukoplakia showed break in basement membrane, which can only be observed under transmission electron microscope (TEM). Additional dysplastic features were observed under transmission electron microscope, which are indicative of neoplastic process. Conclusions: Thus, it is finally concluded that nodular leukoplakia seems to be the most severe clinical type of leukoplakia showing highest risk of malignant transformation. Homogenous leukoplakia might show break in basement membrane under TEM

Intraosseous malignant peripheral nerve sheath tumor of maxilla: A case report with review of the literature

Malignant peripheral nerve sheath tumor (MPNST), the principle malignancy of peripheral nerve origin, though rare in the general population, occurs with excessive frequency among patients with neurofibromatosis. This tumor always arises in soft-tissues, usually found in the lower extremities and only 10-12% of all lesions occur in the head and neck region, which makes it a rare entity. The primary intraosseous MPNST is rare and has been reported most frequently in the mandible. This article discusses a case report of MPNST of the left maxilla without a history of benign nerve tissue tumor and the diagnostic difficulties associated with MPNST

Comparing the efficacy of hematoxylin and eosin, periodic acid schiff and fluorescent periodic acid schiff-acriflavine techniques for demonstration of basement membrane in oral lichen planus: A histochemical study

Background: Basement membrane (BM) is a thick sheet of extracellular matrix molecules, upon which epithelial cells attach. Various immunohistochemical studies in the past have been carried out but these advanced staining techniques are expensive and not feasible in routine laboratories. Although hematoxylin and eosin (H-E) is very popular among pathologists for looking at biopsies, the method has some limitations. This is where special stains come handy. Aims and Objectives: The aim of the present study was to demonstrate and compare the efficacy of H-E, periodic acid Schiff (PAS) and fluorescent periodic acid-acriflavine staining techniques for the basement membrane and to establish a histochemical stain which could be cost effective, less time consuming, and unambiguous for observation of the basement membrane zone. Materials and Methods: A total number of 40 paraffin-embedded tissue sections of known basement membrane containing tissues including 10 - Normal oral mucosa (NOM) and 30 - oral lichen planus (OLP) were considered in the study. Four-micron-thick sections of each block were cut and stained with H-E stain, PAS and fluorescent periodic acid-acriflavine stain. Sections were evaluated by three oral pathologists independently for continuity, contrast and pattern. Results: Though all the three stains showed favorable features at different levels, acriflavine stain was better than the other stains in demonstrating BM continuity, contrast and also the pattern followed by PAS stain. Acriflavine stain was the better in demonstrating a fibrillar pattern of a BM. Acriflavine stains a BM distinctly and is less time consuming and easy to carry out using readily available dyes as compared to other stains. Conclusion: The continuity and contrast along with the homogenous pattern and the afibrillar pattern of the BM was better demonstrated by acriflavine followed by the PAS stain