نتایج جستجو برای: thyroid foramen
تعداد نتایج: 90249 فیلتر نتایج به سال:
Mental foramen is located on the anterior aspect of the mandible that permits the terminal branch of the inferior alveolar nerve and blood vessels to exit. The anatomical variations of mental foramen are of considerable importance in local anesthesia, treatment of the fractures in the parasymphysis area, orthognatic surgeries, implant placement, etc. Regarding the importance of mental foramen i...
Case Report A 10 year old female with an 8 year history of a base of tongue mass presented after two months of increasing size and symptoms of dysphagia (Figure 1). Diagnosis of lingual thyroid (and only functional thyroid tissue) was confirmed by thyroid scan. Resection was performed by transoral endoscopic RF ablation (Figures 2,3). Intraoperatively, the total blood loss was 20cc and time for...
Introduction & Objective: The mental foramen is a part of lower jaw which has neurovascular bundles and also is important in biology. 3D imaging of this area by cone beam computed tomography (CBCT) before surgery can prevent some problems. This study aims to evaluate the anatomic position and geometrical shape of the mental foramen by CBCT images. Materials & Methods: In this research, the C...
Developmental aberrations of the thyroid gland are common. It develops from pharyngeal endoderm, appearing in the fourth embryonic week as a hollow median outgrowth from the floor of the primitive pharynx at the site of the future foramen caecum of the tongue. The thyroid rudiment lies in intimate relationship with the aortic sac, being in direct contact with its endothelium. The rudiment grows...
The thyroid gland arises from the foramen cecum and descends in the neck to its final resting place in the pretracheal space. An anomaly in this descent might leave space in the tract, which leads to the formation of the thyroglossal duct cyst (TGDC). It is estimated that around 7% of the adult population have a persistent duct, therefore, leading to the formation of TGDC. This cyst is lined by...
Ectopic thyroid gland may be detected at any place between foramen caecaum and normal thyroid localization due to inadequacy of the embryological migration of the thyroid gland. It has a prevalence varying between 1/10.000 and 1/100000 in the community. Usually follow-up without treatment is preferred except for obstructive symptoms, bleeding, and suspicion of malignity. Main symptoms are dysph...
Thyroglossal duct cysts originate from persistent epithelial remnants of the thyroglossal duct that are present during the descent of the thyroid gland from the foramen cecum to its final position in the anterior neck. Thyroglossal duct may persist anywhere along the descent from the tongue to the thyroid. Lingually localized thyroglossal duct cysts are congenital lesions of the pharynx, which ...
Introduction. Thyroglossal duct cysts are developmental, epithelial lesions localized in the neck?s median line. They occur mainly children and adolescents; however, they also one-third of patients older than 20 years age. The symptoms dependent on size location along path thyroglossal duct. Case outline. This article presents a case, with diagnostic imaging surgical treatment, two-yearold girl...
We report a case in which multiple uncommon causes of an ischemic vascular accident coexisted in the same patient. The patient was admitted with signs of acute stroke. Investigation workup revealed a left atrial tumor (myxoma) and a patent foramen ovale. Intraoperatively, transesophageal echocardiography added new information: papillary fibroelastomas were found in the aortic valve. This findin...
Introduction: Mental foramen is an important landmark in mandible and knowledge regarding the actual location of mental foramen is important in dentistry. Materials &Methods: A total of 1172 digital panoramic radiographs were evaluated for assessment of the location of the mental foramen. The location was classified into six groups in relation to the apices of the premolars and first molar. R...
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