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Gastric gastrointestinal stromal tumors (GISTs) less than 2 cm are usually followed up conservatively. However, little is known about the natural course of small GISTs. The goal of this study was to evaluate the clinical course of the small EUS-suspected gastric GISTs and to determine the size predicting subsequent progression with increased malignant potential.
Observational Model: Cohort, Time Perspective: Retrospective
National Taiwan University Hospital
Published on BioPortfolio: 2010-07-15T17:00:00-0400
Previous study showed circulating tumor DNA levels reflect the total systemic tumor burden. Circulating tumor DNA levels should decrease after complete surgery and could be increase as tum...
The primary purpose of this study is to determine if oral (mouth) delivery prior to tumor removal in patients with gastrointestinal stromal tumor (GIST) results in tumor shrinkage allowing...
Malignant cells frequently produce many tumor growth factors to autocidal or endocrinal proliferate growth, metastasis,or angiogenesis about tumor cells. By studying tumor growth factors i...
RATIONALE: Monoclonal antibodies, such as bevacizumab, can block tumor growth in different ways. Some find tumor cells and kill them or carry tumor-killing substances to them. Others inter...
Preclinical models of urogenital carcinoma have been emerging as a way to pre-determine drug resistance before therapy is targeted. The implantation of tumor specimens in the chorioallanto...
Sentinel lymph node metastasis is a prognostic indicator for systemic tumor spread in many types of cancers, and tumor lymphangiogenesis correlates with reduced survival. Consequently, lymphatic vesse...
The « liquid biopsies » are samples of liquids such as blood, urine, spinal fluid that can contain tumor material. Clinical assays have been mainly focused on the peripheral blood containing circu...
Immune cells and mesenchymal stem/stromal cells are the major cellular components in tumor microenvironment that actively migrate to tumor sites by sensing "signals" released from tumor cells. Togethe...
The term of "tumor-to-lesion metastasis" is an extension of "tumor-to-tumor metastasis", which is a rare but well-documented phenomenon. Tumor metastasis to the meninges and/or central nervous system ...
Tumor purity and ploidy have a substantial impact on next-gen sequence analyses of tumor samples and may alter the biological and clinical interpretation of results. Despite the existence of several c...
Hypoxic conditions in tumor cells due to the tumor outgrowing its blood supply. It is associated with increased METASTASIS and resistance to RADIOTHERAPY and DRUG THERAPY.
An unusual and aggressive tumor of germ-cell origin that reproduces the extraembryonic structures of the early embryo. It is the most common malignant germ cell tumor found in children. It is characterized by a labyrinthine glandular pattern of flat epithelial cells and rounded papillary processes with a central capillary (Schiller-Duval body). The tumor is rarely bilateral. Before the use of combination chemotherapy, the tumor was almost invariably fatal. (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1189)
A tumor, basically a carcinoma with a single sarcoma such as leiomyosarcoma or angiosarcoma or multiple sarcomas of uterine origin. The role of estrogen has been postulated as a possible etiological factor in this tumor. (Holland et al., Cancer Medicine, 3d ed, p1703)
A rare tumor of the female genital tract, most often the ovary, formerly considered to be derived from mesonephric rests. Two varieties are recognized: (1) clear cell carcinoma, so called because of its histologic resemblance to renal cell carcinoma, and now considered to be of muellerian duct derivation and (2) an embryonal tumor (called also ENDODERMAL SINUS TUMOR and yolk sac tumor), occurring chiefly in children. The latter variety may also arise in the testis. (Dorland, 27th ed)
Serum glycoprotein produced by activated MACROPHAGES and other mammalian MONONUCLEAR LEUKOCYTES. It has necrotizing activity against tumor cell lines and increases ability to reject tumor transplants. Also known as TNF-alpha, it is only 30% homologous to TNF-beta (LYMPHOTOXIN), but they share TNF RECEPTORS.