نتایج جستجو برای: malignant tumor
تعداد نتایج: 563949 فیلتر نتایج به سال:
abstract background solid pseudo-papillary tumor of the pancreas (sptp) is a rare disease with a low malignant potential. though it shows low malignant potential 10% to 15% of the cases show aggressive behavior with metastatic involvement of the liver. the symptoms include abdominal discomfort and abdominal pain. it is very rare in early years of age. this is the case of a 10 year old girl with...
Background: Routine screening colonoscopy is on the rise and pathologists have to deal with the ever larger numbers of excised colonic polyps. It is very important to optimize the patients’ individual treatment and further surveillance. Pathologists play a critical role in management, as most of the clinical decisions concerning colonic polyp managemen...
Aim and Background: it seems that population of regulatory T cells increases in many malignancies leading to suppression of effector immune responses and thereby to progression of the disease. We aimed to assess infiltration of the regulatory T cells into tumor environment in women with breast carcinoma. Methods: in a control-case study, 9 malignant tumor tissues from invasive intraductal breas...
BACKGROUND:Canine mammary gland cancers are the most prevalent malignancies in dogs. There are different challenges regarding management of these cancers in dogs and human, one hypothesis is related to small cellular subset of tumor mass called cancer stem cell. These cells are therapy resistant and cause metastasis and relapse even after primary successful treatment. The well-identified phenot...
Malignant peripheral nerve sheath tumor (MPNST) is an aggressive neoplasm of neural origin. It is a rare neoplasm of childhood, accounting for less than 5% of all cases. In 1994 a 29 months old boy was admitted to the Mofid Hospital with complaints of fever, dyspnea and respiratory distress. After performing all the necessary clinical and labratory tests a large mass in the upper posterior medi...
Abstract Background Solid pseudo-papillary tumor of the pancreas (SPTP) is a rare disease with a low malignant potential. Though it shows low malignant potential 10% to 15% of the cases show aggressive behavior with metastatic involvement of the liver. The symptoms include abdominal discomfort and abdominal pain. It is very rare in early years of age. This is the case of a 10 year old girl wi...
background : meningiomas are common benign tumors of the central nervous system. patients with meningiomas achieve postoperative optimal functional recovery, but there is a probability of tumor recurrence months or years after surgical resection. this study aims to evaluate the prevalence of recurrent meningioma and the correlation between tumor recurrence and certain factors. materials and met...
Background and purpose : Malignant and infectious diseases are the most frequent causes of pleural effusion. Malignant diseases produce pleural effusion through different mechanisms: lymphatic and capillary obstruction, pneumonia or atelectasia. Therefore absence of tumor cells in aspirated effusion, highly declines the sensivity of the cytologic study. For this reason, the use of tumor marke...
wc studied the correlation between preoperative cervical cytology, postoperative clinicopathologic findings, and sites of metastasis from so surgically staged patients with endometrial carcinoma tliirty-faur patients (68%), liad normal cervical cytology, ami 16(32%) had malignant preoperative cervical cytology. malignant cervical smears were statistically correlated with surgical stage (p = 0.0...
Background: Although the majority of soft tissue masses are benign, it is important to consider malignancy in differential diagnoses. Because most soft tissue sarcomas present as a painless mass, clinicians must watch for signs suggestive of malignancy, including large size, rapid growth, and site deep into the deep fascia.The purpose of this study was to determine the relative prevalence acc...
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