Publications by authors named "Arvind Venkatesh"

Background: The percentage of cancers of the tongue and palatine tonsils has continued to increase by 2%-4% among younger men. This increased prevalence of a subsection of oropharyngeal carcinoma can be associated with human papillomavirus (HPV). Among the head-and-neck cancers, a strong association with HPV infection is evident with oropharyngeal cancers, particularly tonsillar and basal tongue cancers.

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Background: Oral submucous fibrosis (OSMF) is a chronic progressive scarring oral disease caused due to areca quid chewing. The constituents of areca nut can enter into the circulation by swallowing the liquid mixture of areca quid which evokes oxidative stress on RBC membrane integrity.

Aims: To study the morphometric characteristics of erythrocytes under light microscopy and to assess the role of areca quid constituents on the morphology of circulating erythrocytes.

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Central intraosseous adenoid cystic carcinoma (ACC) of the mandible, formerly known as cylindroma, is a rare neoplasm with only 47 cases reported in the literature. We present a case of central ACC involving the mandible of a 55-year-old male patient.

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Oral Submucous Fibrosis (OSMF) is a chronic progressive scarring oral disease predominantly affecting people of South Asian origin. It is characterized by juxtaepithelial inflammatory cell infiltration followed by fibrosis in the lamina propria and submucosa of the oral mucosa. The pathogenesis of the disease is not well established and a number of mechanisms have been proposed regarding the pathogenesis.

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Background: The most fundamental trait of cancer cells involves their ability to sustain chronic proliferation. Tumors have a complex cellular ecology that establishes the malignant potential of the tumor. In these ecosystems, innate immune cells are highly represented.

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Background: Identification of an individual from fragmented remains is still a very challenging task for forensic experts in spite of the many studies which have been carried out till date, across the globe. Stature, one of the criteria of personal identification, has a definite and proportional biological relationship with every part of the human body which includes the cephalofacial (CF) region. At instances, where only CF remains are available, it becomes difficult for the forensic scientist to identify the deceased since there is a paucity of studies pertaining to the estimation of stature from CF dimensions.

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Large, atypical peripheral ossifying fibromas are known as giant peripheral ossifying fibromas. These lesions have often been associated with heterogeneous clinical and radiographic characteristics subsequently leading to their misdiagnosis. Biopsies have been the gold standard for the diagnosis of such lesions.

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Antrochoanal polyps (ACPs) are benign lesions that arise from the mucosa of the maxillary antrum, grow into the maxillary sinus, and reach the choana with nasal obstruction being their main symptom. Most of these lesions are small and clinically silent and found as incidental finding, but large cysts which occupy the entire antrum have also been reported in literature. Nasal endoscopy and computer tomography (CT) are the golden standard in the diagnosis of ACPs, and enucleation by Caldwell-Luc approach is the recommended treatment for larger antral cysts.

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We present an interesting but intriguing case of an indolent palatal swelling. The lesion was asymptomatic causing little discomfort to the patient and thus was an incidental clinical finding. Provisional diagnosis was a benign, minor salivary gland tumor.

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Context: Like normal tissues, tumors require an adequate supply of oxygen, metabolites and an effective way to remove waste products. This is achieved by angiogenesis, which is defined as the process by which new blood vessels are produced by sprouting from preexisting vasculature. There is a large spectrum of physiological and pathological processes in which angiogenesis occur, ranging from tissue hypertrophy, wound healing, and inflammation to tumors.

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In hyperpolarized (HP) noble-gas magnetic resonance imaging, large nuclear spin polarizations, about 100,000 times that ordinarily obtainable at thermal equilibrium, are created in 3He and 129Xe. The enhanced signal that results can be employed in high-resolution MRI studies of void spaces such as in the lungs. In HP gas MRI the signal-to-noise ratio (SNR) depends only weakly on the static magnetic field (B(0)), making very low-field (VLF) MRI possible; indeed, it is possible to contemplate portable MRI using light-weight solenoids or permanent magnets.

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