نتایج جستجو برای: parotid glands
تعداد نتایج: 44335 فیلتر نتایج به سال:
Hemangiomas are defined as soft tissue lesions in the maxillofacial or oral region. Hemangiomas of salivary glands constitute 30% of the non-epithelial tumors in major salivary glands. Benign tumors in salivary glands are located 85% in parotid gland and 13% in submandibular gland. We present a case of submandibular hemangioma in an infant patient that had some complications and a challenging ...
Background: Three-dimensional conformal radiotherapy (3D-CRT) and intensity-modulated radiotherapy (IMRT) techniques are used for the treatment of patients with laryngeal cancer. Objective: This study aimed to investigate the effects of these 2 treatment techniques on the planning target volume (PTV) (laryngeal cancer), dose homogeneity, dose of organs at...
SUMMARY: BACKGROUND: Metastases to the parotid and thyroid glands from breast cancer are rare and have a poor prognosis. CASE REPORT: We present the case of a patient with breast carcinoma and synchronous involvement of both the parotid and thyroid gland, and review the literature on this subject. CONCLUSION: Metastatic malignancy in clinically suspect thyroid and parotid nodules could be detec...
This experimental work was undertaken to study the effects of various carcinogens on salivary glands in the hope of producing primary epithelial neoplasms, and, among these, the so-called “mixed tumors― of the parotid and submaxillary glands. Indeed, this study has been stimulated by the meager results obtained in this field by a few authors and the uncertainty concerning the origin and pat...
Isoproterenol is a potent B-adrenergic agonist which its effect on rabbit salivary Glands has been studied in this research.two groups of male albino rabbits(five in each group with the mean weight of 1000+_300 gr) were injected with 20 mg/kg of isoproterenol intrapritoneally each day for fifteen days and one similar group(n=5) was chosen as control group.in one of the test groups in addition ...
INTRODUCTION Radiotherapy of nasopharyngeal carcinoma patients with parapharyngeal space (PPS) involvement may deliver high dose to the parotid gland. This study evaluated parotid gland changes during and up to 3 months after radiotherapy. METHODS Kilovoltage computed tomography (CT) scans of head and neck region of 39 nasopharyngeal carcinoma patients with PPS involvement were performed at p...
The murine parotid secretory protein (PSP) gene is expressed selectively at high levels in parotid and sublingual salivary glands. Previously, the transcriptional activity of a PSP mini-gene, called Lama, was shown to be dependent on a 1.5 kb region located 3 kb upstream of the transcription start site. Here, functional studies in transgenic mice demonstrate that this proximal regulatory region...
PURPOSE Cytogenetic analysis of a pleomorphic adenoma (PA) arising in the major salivary glands, in particular the parotid, is well documented, with chromosome 8 being the most commonly involved aberration, mainly in t(3;8). However, cytogenetic studies of PA in the minor salivary glands (MSGs) are rare and, to the authors' knowledge, only 3 reports have been published. The authors investigated...
Epithelial myoepithelial carcinoma is a rare biphasic low grade neoplasm of salivary glands; it most commonly occurs in the parotid gland but can also arise in minor salivary glands. Here a case of 58-year-old female presented with left cheek swelling of one-year duration. CT scan revealed a localized submandibular salivary gland tumor mass not involving surrounding tissues. Histological examin...
The B1-immunoreactive proteins (B1-IPs) are major secretory products of rat submandibular gland acinar-cell progenitors, and are also produced by neonatal and adult rat sublingual and parotid glands. In order to characterize the B1-IPs, we have previously isolated cDNA clones encoding rat parotid secretory protein (PSP; the predominant parotid B1-IP) and the related clone ZZ3, which is developm...
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