tongue base lesions have a diverse and extensive etiology. one of the benign tongue base lesions is schwannoma. schwannoma and neurofibroma are two tumors of the peripheral nerves originating in the nerve sheaths. schwannoma account for just over 1% of benign tumors which have been reported in the oral cavity and base of the tongue and with regard to its involved area in the oral cavity is very...

introduction: meningioma is usually a benign brain tumor, but sometimes with aggressive course. the aim of this study was to assess the ability of 201tl brain spect to differentiate the pathologic grade of meningioma preoperatively. methods: thirty lesions in 28 patients were evaluated in this study. early (20 minutes) and late (3 hours) brain spect images were performed and early uptake ratio...

Abstract The goal of the work described here was to evaluate utility acoustic radiation force impulse (ARFI) imaging, a novel elastography technique, for differentiating benign from malignant salivary gland tumors. With use conventional strain (SE) and ARFI imaging with four-pattern scoring system, 185 tumors were examined (163 benign/22 malignant). When score ≥3 used define malignancy...

In 30 patient with single cold thyroid nodule and normal thyroid function tests, 99mTc-MIBI scan is performed. The nodules are divided to hot (10), Warm (12) and cold (8). FNA reported papillary Ca in 4, suspicious follicular neoplasm in 3 and 23 benign lesions. 7 patients were operated on and had final pathology reports (4 papillary Ca and 3 benign lesions). All the nodules with no MIBI ...

introduction: salivary gland tumors (sgts) are important parts of human neoplasms. the most common sgt is pleomorphic adenoma and the most common malignant sgts are mucoepidermoid carcinoma and adenoid cystic carcinoma (acc). metastasis-associated genes 1 (mta1), a member of the nucleosome remodeling and histone deacetylation complex, is one newly discovered gene which recruits histone deacetyl...