نتایج جستجو برای: parotid space
تعداد نتایج: 501403 فیلتر نتایج به سال:
Parotid Stafne bone defect is a very rare and infrequent variant, which is located on the buccal or lingual surface of the mandibular ascending ramus. In this paper, a case of parotid Stafne defect, which was incidentally discovered during dental radiographic examination, is reported. This bone defect was observed as a lucent oval-shaped defect on the lingual aspect of the right mandibu...
Introduction Parotid gland squamous cell carcinoma is an uncommon aggressive neoplasm with poor prognosis. Aural polyps are usually the presenting features of chronic suppurative otitis media, tuberculous otitis media, and adenoma or carcinoma. The malignant aural polyp is very rare. Parotid gland carcinoma masquerading as an aural polyp has rarely been described in the literature. ...
BACKGROUND AND PURPOSE Infections caused by nontuberculous mycobacteria (NTM) commonly manifest as cervicofacial adenitis in otherwise healthy children. The aim of this study was to characterize the imaging findings of NTM infection of the head and neck in immunocompetent children. METHODS The medical records and imaging examinations (CT in 10, MR in two) were reviewed in 12 immunocompetent c...
Abstract Parotid gland is a rare site of metastasis from gastrointestinal (GI) tract primary cancer. Here, we present an interesting case report parotid unknown with probable lower GI as cancer, normal colonoscopy and upper endoscopy. This highlights the importance immunohistochemistry in taking treatment decisions during dilemmatic situations.
PURPOSE To concurrently quantify the radiation-induced changes and temporal evolutions of parotid volume and parotid apparent diffusion coefficient (ADC) in nasopharyngeal carcinoma (NPC) patients treated by intensity-modulated radiotherapy by using magnetic resonance imaging (MRI). MATERIALS AND METHODS A total of 11 NPC patients (9 men and 2 women; 48.7 ± 11.7 years, 22 parotid glands) were...
sialography is the retrograde injection of an iodinated contrast agent into the ductal system of salivary glands and this technique is the only method capable of adequately demonstrating the status of the ductal system. one of the indications of sialography is classification of the salivary ductal system fistulae. this classification has important prognostic and therapeutic values. in the prese...
Background & Objective: Lipoma (a benign tumor composed of adipose tissue) is the most common benign mesenchymal tumors in soft tissue but it is very rare in the parotid gland. Case: We reported a 54 years old man with parotid gland lipoma. Parotid gland lipoma usually originates from the superficial lobe. Superficial parotidectomy has been considered as the choice method of the treatment. ...
abstract we report a 30 year old woman who presented with a painless preauricular mass of two months duration. superficial parotidectomy was performed for the patient. histological examination and immunohistochemical findings were in favor of mixed cellularity hodgkin’s lymphoma (mchd). according to this diagnosis the patient received local radiotherapy and during 4 months of follow-up no recur...
BACKGROUND Radiation-induced parotid damage is a common complication in patients with nasopharyngeal carcinoma (NPC) treated with radiotherapy to head and neck region, which severely reduce the life quality of those patients. The aim of this study was to early evaluate the changes of irradiated parotid glands with T2 mapping and mDIXON Quant imaging. METHODS Forty-one patients with NPC underw...
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