نتایج جستجو برای: lymphatic metastases
تعداد نتایج: 72157 فیلتر نتایج به سال:
Clinically unsuspected metastases to the lateral retropharyngeal nodes from carcinomas of the upper gingiva or maxillary sinus were found in five patients on follow-up CT examinations. Such uncommon metastases may follow the afferent lymphatic channels from the palate or pharyngeal region or arrive by retrograde lymphatics from positive neck nodes. Careful examination of lateral retropharyngeal...
The expression of p53 protein was immunohistochemically studied in formalin-fixed paraffinembedded biopsy specimens of 203 colorectal carcinomas by use of a monoclonal antibody specific for the p53 protein, PAbl8OL. p53 protein expression with its reactivity localised in nuclei was found in 121 (59.6%) of the cancers. There was no correlation of pS3 immunoreactivity with histological classifica...
G are the most common malignant primary brain tumor. Only 0.2%-0.5% of cases metastasise outside the brain.1,2 We present a rare case of glioblastoma with bilateral cervical lymph node metastases. A 60-year-old man presented with 3-weeks of progressive right arm tingling. He had no medical history of note and the only abnormalities found on examination were decreased light touch and propriocept...
In individuals with mammary carcinoma, the most relevant prognostic predictor of distant organ metastasis and clinical outcome is the status of axillary lymph node metastasis. Metastases form initially in axillary sentinel lymph nodes and progress via connecting lymphatic vessels into postsentinel lymph nodes. However, the mechanisms of consecutive lymph node colonization are unknown. Through t...
A 61-year-old male was admitted to Başkent University Hospital with right shoulder pain, weight loss, and dyspeptic symptoms. His chest roentgenogram showed a mass-like shadow of about 7 cm in diameter in the right upper lung area (Fig. 1). Subsequent computed tomograph (CT) revealed a large tumor with multiple metastases spread in the lung paranchimal tissue but no metastases in the mediastina...
BACKGROUND/AIMS Even though the blood and lymphatic vascular systems are both involved in the occurrence of cancer metastases, it is believed that lymphatic system is primarily responsible for the initial metastasis. Nevertheless, the molecular mechanisms underlying lymphangiogenesis of multiple myeloma (MM), especially in pediatric period, have not been clarified. METHODS Here we studied vas...
OBJECTIVE Ovarian mucinous metastases commonly present as the first sign of the disease and are capable of simulating primary tumors. Our aim was to investigate the role of intratumoral lymphatic vascular density together with other surgical-pathological features in distinguishing primary from secondary mucinous ovarian tumors. METHODS A total of 124 cases of mucinous tumors in the ovary (63 ...
The potential for breast cancer to present with lymphatic metastases, has instilled anxiety when women present with axillary masses. We discuss a simple and reliable clinical sign that can help clinicians to distinguish between axillary nodal metastases and accessory axillary breast tissue. Awareness and recognition of the "V-sign" can allay anxiety in women with accessary axillary breast tissu...
Status of lymph nodes of level IIb was examined to identify the incidence of nodal metastasis and the lymphatic drainage in squamous cell carcinoma of the oral tongue in patients undergoing modified radical neck dissection (MRND) and sentinel node biopsy (SNB). Overall, 72 patients were divided into two groups; 38 patients (Group A) of any T and N+ or T3-T4- N0 stage underwent MRND. The surgica...
The lymphatic vascular system is necessary for the return of extravasated interstitial fluid and macromolecules to the blood circulation, for immune defense, and for the uptake of dietary fats. Impaired functioning of lymphatic vessels results in lymphedema, whereas tumor-associated lymphangiogenesis may contribute to the spread of cancer cells from solid tumors. Recent studies have identified ...
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