نتایج جستجو برای: neonatal tumors
تعداد نتایج: 258631 فیلتر نتایج به سال:
purpose : to report clinical aspects of choroidal metastasis at a referral ocular oncology center methods : we reviewed the records of all patients with choroidal metastasis referred to an ocular oncology referral center over a 10-year period retrospectively. the study was performed to identify and analyze clinical presentations and features of patients with choroidal metastasis. results : a to...
background gastrointestinal stromal tumors (gist) are the most common mesenchymal tumors of the gastrointestinal (gi) tract. they are usually c-kit positive and seen slightly more common in men. these tumors are seen in the gi tract from the esophagus to the anus with occasional invasion or metastasis. method in this retrospective study, we evaluated the prevalence of c-kit positive stromal tum...
in this study, 22 patients (15-75 years old) were selected and transferred to ct scan for tumor ablation. for ablations, after prep and drep under the local anesthesia and mild sedation in proper position, small incision made and special needle inserted and guided by proper direction to the core of the tumor. then, laser probe inserted through the needle and laser energy delivered. although we ...
Background :The incidence of sarcomas occurs in less than 1% all malignant tumors but sarcoma is the cause 2% total cancer deaths. Based on National Registry neonatal 2.6 per million live births.Case Description : A baby girl aged 3 days, complaining a mass patient's left thigh since birth. was large from birth and there only one thigh. In prenatal history, mother with routine ANC history to mi...
The carcinogenicity of safrole following transplacental ex posure of the mouse fetus and exposure of the neonatal mouse via the mother's milk was investigated in C57BL/6J x CSHeB/ FeJ F, (hereafter called B6C3F,) mice by intragastric admin istration of the agent to pregnant and lactating C57BL/6J females. Safrole (120 ftg/g body weight per treatment) was administered to (a) pregnant mice (4 tim...
PURPOSE The incidence of pediatric adrenocortical tumors (ACTs) is remarkably high in southern Brazil, where more than 90% of patients carry the germline TP53 mutation R337H. We assessed the impact of early detection of this mutation and of surveillance of carriers. PATIENTS AND METHODS Free newborn screening was offered at all hospitals in the state of Paraná. Parents of positive newborns we...
Neonatal administration of estradiol-17beta (E2-17beta) increases the nuclear DNA content in the mouse reproductive tract. Similar responses have been demonstrated for synthetic estrogens such as diethylstilbestrol. One of the questions raised regarding environmental estrogens such as organochlorines is whether they are potent enough to result in abnormal changes such as those demonstrated by b...
Hamsters treated with 2-acetylaminofluorene (AAF) were studied to test the effects of dietary indole and excess DL-tryptophan and the initial age of the animals on the development of bladder tumors. Neonatal males and females were given i.p. injections of AAF, 5 mg/100 g body weight, 3 times weekly until weaning. They were then fed a synthetic diet containing AAF with or without 1.6% indole or ...
جهت بررسی کزاز نوزادی و ارتباط آن با مسایل اجتماعی و بهداشتی جامعه تعداد 10 مورد نوزاد که با تشخیص neonatal tetanus در طی 5ˆ2 سال در بیمارستان علی اصغر پذیرش گردیده اند، انتخاب و مورد مطالعه قرار گرفتند. نتایج بدست آمده نشان میدهد که فقر فرهنگی خانواده ها از عوامل مهمی است که ارتباط نزدیکی با این بیماری دارد. بطوریکه 70 درصد پدران و 90 درصد مادران این نوزادان بی سواد بوده اند. درصد قابل توجهی ا...
Pediatric brain tumors are significant causes of morbidity and mortality. It has been hypothesized that they derive from self-renewing multipotent neural stem cells. Here, we tested whether different pediatric brain tumors, including medulloblastomas and gliomas, contain cells with properties similar to neural stem cells. We find that tumor-derived progenitors form neurospheres that can be pass...
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