,polo ralph lauren
Color Doppler ultrasound diagnosis of salivary gland tumor


Parotid cysts are in line with the general cystic echo performance. CDU: parotid pleomorphic adenoma, 8 cases were basket-like blood flow, 3 cases were eccentric like blood, and 1 small tumor blood flow less. Two cases of parotid lipoma no significant signal. The parotid cyst wall shows no blood flow. 2.3 malignant salivary gland tumor of ultrasonography in this group of malignant tumor the size of the 1.5-2.9em, of which 11 cases of regular or irregular shape, the border less clear, the strength of uneven internal echo, posterior echo attenuation in some cases , no echo envelope. CDU: the performance of multiple perfusion, was hold the ball or wear resistance thermometer. The patients of ultrasonography and Liu Ruochuan, etc. ... basically the same coverage. 2.4 misdiagnosed cases sonography 1 case parotid pleomorphic adenoma parotid inflammatory lymph nodes, the parotid gland sonography in the lower edge of the corner the size of 0.8em × 13em see a long oval hypoechoic nodules,nike free run, no significant blood flow. 1 case of bilateral submandibular gland tuberculosis, ultrasonography showed bilateral submandibular glands are a cystic mass-like echo, hyperechoic mass peripheral calcification, abundant blood flow signals, ultrasound misdiagnosed as bilateral submandibular gland metastases. There is one case of submandibular gland pleomorphic adenoma sonogram shows the strength of the echo-like clumps of uneven, and has a rich hold the ball-like flow signals, ultrasound misdiagnosed as submandibular gland cancer. Pathologically confirmed in 13 cases of salivary gland cancer, 1 case of squamous cell carcinoma of submandibular gland, ultrasound showed a lobulated hypoechoic group. CDU: half-ring around the tumor blood flow, was wearing some support blood flow. Ultrasound misdiagnosed as submandibular gland pleomorphic adenoma. The other one case submandibular gland metastasis. Ultrasound shows hypoechoic oval mass, blood flow is not rich, ultrasound gland misdiagnosed as lymphoma. 3 Discussion 3.1 ultrasonography of benign and malignant salivary gland tumor in the differential diagnosis of three pairs of salivary glands, namely parotid, submandibular and sublingual glands. Parotid gland tumors occur most often, followed by the submandibular gland. More superficial location of salivary gland tumors, high-frequency ultrasound examination revealed a large tumor, the shape, boundary and internal echoes. The group of 39 cases of salivary gland benign tumor of the two-dimensional ultrasound: mass form more than the rule, enveloped echo, clear boundaries, mostly within the uniform low-echo echo. According to this report 13 cases of malignant tumor forms are not rules, no more echo envelope, boundary less clear, heterogeneous internal echo. This is due to a malignant tumor on the surrounding tissue due to invasive growth. Performance consistent with those reported above. 3.2 Color Doppler ultrasound in benign and malignant salivary gland tumor in the differential diagnosis of benign salivary gland tumor in parotid and submandibular glands with pleomorphic adenoma and gland lymphoma, the most common. CDU has characteristic features: the former was basket-like distribution of blood flow signals, the latter mostly lymph node-like blood flow. The group of these two tumor blood flow distribution are similar. However, lesions in this group, 1 case of smaller mass, blood flow decreased significantly. I detected two cases of parotid lipoma no blood flow signals, the performance and Zhang Jin Hee reported the same. Malignant salivary gland blood flow more than the rich, the group of 13 cases of malignant salivary gland tumor, CDU show rich blood flow signals, but the distribution of disorder or perforating branches like performance. Therefore, CDU benign and malignant salivary gland also have a certain diagnostic value. 3.3 Analysis of misdiagnosed cases of benign salivary gland tumor in this group, 3 cases false positive, 1 case of parotid see a small oblong nodules, nodules within the CDU because no significant blood flow, it is misdiagnosed inflammatory parotid gland lymph nodes. The other 1 case of bilateral submandibular gland tuberculosis, two-dimensional sonogram showed bilateral submandibular cystic echo, mass calcification around the strong echo, CDU performance rich blood flow signals within the mass, I mistakenly believe that the submandibular gland metastases is due to Tuberculosis of the submandibular gland lack of understanding of the image, while the performance because it is bilateral,ugg greece, metastases, mostly bilateral, so misdiagnosis. One case of submandibular gland metastases, because of its performance class round hypoechoic mass, the boundary than the regular,ralph lauren shop, CDU is not rich blood flow signals, the lack of malignant sonographic features of performance, the majority reported in the literature, generally less metastatic tumor blood supply , two-dimensional ultrasonography can be no regularity, so the diagnosis more difficult. 13 cases of malignant salivary gland tumor, there are two cases of miscarriage of justice for the benign masses,franklin marshall soldes, are due to malignant tumor mass echo the general lack of sonographic features and the author due to lack of experience. In short, after this group of salivary gland tumor case-control ultrasound examination with that color Doppler ultrasound diagnosis and its differential diagnosis are important clinical value. [
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