• Background: Gastrointestinal stromal tumors (GIST) are rare mesenchymal tumors that may mimic ovarian tumor on presurgical testing. (scirp.org)
  • Case Report: We reported a case of 55-year-old post menopausal woman who presented to us as ovarian mass which turned out to be malignant epithelioid gastrointestinal stromal tumor intraoperatively and by immunohistochemistry. (scirp.org)
  • Considering that only few patients with gastrointestinal stromal tumors have been reported in the obstetrical and gynecological literature, the awareness of such an entity by the obstetricians-gynecologists is necessary in order to facilitate coordinated approach with the general surgeons and oncologists for the optimal care of the patients. (scirp.org)
  • GISTs (Gastrointestinal stromal tumors) are most common mesenchymal neoplasms of gastrointestinal tract. (scirp.org)
  • Our case was also presented as ovarian mass which turned out to be malignant epithelioid gastrointestinal stromal tumor intraoperatively and by immunohistochemistry. (scirp.org)
  • Histologically the tumor showed the mass to be a malignant epitheioid gastrointestinal stromal tumor with mitoses in 8 - 9 of 10 high-power fields ( Figure 1 ). (scirp.org)
  • Gastrointestinal stromal tumors (GISTs) are mesenchymal neoplasms of the gastrointestinal (GI) tract and are thought to develop from the interstitial cells of Cajal, innervated cells associated with the Auerbach plexus. (medscape.com)
  • Shown here is a gastric gastrointestinal stromal tumor (GIST). (medscape.com)
  • Stromal tumor refers to a type of tumor that arises from the connective tissue cells, known as stromal cells, which provide structural support to various organs and tissues in the body. (gokhanakbulut.com)
  • The most well-known and common type of stromal tumor is called gastrointestinal stromal tumor (GIST). (gokhanakbulut.com)
  • The incidence of stromal tumors, specifically gastrointestinal stromal tumors (GIST), can vary depending on the population and region being studied. (gokhanakbulut.com)
  • Data from Berman JJ, O'Leary TH: Gastrointestinal stromal tumor workshop. (clinicalgate.com)
  • Endoscopic ultrasound (EUS) of malignant gastrointestinal stromal tumor (GIST) treated with imatinib methylate. (clinicalgate.com)
  • 1% of all Gastrointestinal (GI) tumors and its incidence is approximately 10 - 20 per million people per year. (scirp.org)
  • Morphologically, GISTs vary from cellular spindle cell tumors (70% - 80%) to epithelioid (20% - 30%) or mixed. (scirp.org)
  • Even rarer tumors can arise from the sensory organs that regulate blood flow to different parts of the body. (sarctrials.org)
  • Another group of tumors once thought to arise from cells around blood vessels, hemangiopericytoma, is now termed solitary fibrous tumor/hemangiopericytoma, since the tumors all appear to be very similar in terms of their biology. (sarctrials.org)
  • Histologically, GISTs can be categorized as cellular spindle cell tumors (70%), epithelioid tumors (20%), or pleomorphic/mixed morphology tumors, but such histologic distinction does not carry clear prognostic significance. (medscape.com)
  • The excess cells then bind together and form tumors, which may grow deep into the stomach walls or invade nearby organs, such as the liver and pancreas. (stomachguide.net)
  • The cancer cell growth in the stomach is also known as gastric carcinoma, gastric tumors, or canine gastric cancer. (stomachguide.net)
  • Symptoms of GIST may include abdominal pain, gastrointestinal bleeding, a palpable mass, or other digestive system-related issues. (gokhanakbulut.com)
  • Surgical removal of the tumor is a common approach, sometimes accompanied by targeted therapy with drugs that specifically target the molecular abnormalities found in GIST cells, such as imatinib (Gleevec) or sunitinib (Sutent). (gokhanakbulut.com)
  • Histopathology report showed the retroperitoneal mass to be a malignant epithelioid gastrointestinal tumor. (scirp.org)
  • Another form of tumor with kinship to fibroblasts, the boring cells that hold many parts of our body together. (sarctrials.org)
  • This tumor typically arises in the skin and must be excised by an appropriate expert, as less extensive resections often end in failure. (sarctrials.org)
  • GISTs are typically defined by the expression of c- KIT (CD117) in the tumor cells, as these activating KIT mutations are seen in 85-95% of GISTs. (medscape.com)
  • Stomach cancer in dogs is a tumor that develops as a result of the uncontrolled growth of cells in the stomach. (stomachguide.net)
  • When the normal cells in the stomach lining or muscle layer turn into cancerous ones, the result is stomach tumor formation. (stomachguide.net)
  • Because the pancreatic tumor mass of ductal adenocarcinoma most commonly arises from the head of the pancreas which are the sections where the bile duct joins with the pancreatic duct, the normal flow of the bile duct is often obstructed, thus disrupting the natural deposition of the bile fluid into the small bowel. (stomachguide.net)
  • Patients with pediatric-type GISTs present with a purely epithelioid or mixed epithelioid/spindle cell cellularity. (medscape.com)
  • This uncommon group of sarcomas appear to arise from the lining of blood vessels (endothelial cells) or their precursors. (sarctrials.org)
  • They perform many functions, including biochemical control of endothelial cells that form the blood-brain barrier , [1] provision of nutrients to the nervous tissue, maintenance of extracellular ion balance, regulation of cerebral blood flow, and a role in the repair and scarring process of the brain and spinal cord following infection and traumatic injuries. (atozwiki.com)
  • These interacting tasks are carried out by a system that is ubiquitous to all vertebrates and comprises two treelike branched systems of tubules known as blood and lymphatic vessels lined by highly specialized endothelial cells. (basicmedicalkey.com)
  • 8 The sprouting of endothelial cells is regulated by Notch signaling receptors and their Delta-like 4 (DLL4) ligand. (basicmedicalkey.com)
  • Precurser lymphatic endothelial cells form a distinctive cluster in mid-gestation embryos on the dorsal side of the jugular vein. (basicmedicalkey.com)
  • The prospero related homeobox-1 (PROX1) transcriptional factor and vascular endothelial growth factor receptor-3 (VEGFR3) are responsible for their differentiation into lymphatic endothelial cells. (basicmedicalkey.com)
  • 5 , 9 , 17 Although endothelial cells of blood vessels and lymphatics are somewhat similar, the lymphatics lack a continuous basement membrane and are not tightly sealed by intercellular junctions, permitting the free access of interstitial tissue fluid into the vessel. (basicmedicalkey.com)
  • GISTs are typically diagnosed as solitary lesions, although in rare cases (ie, pediatric type), multiple lesions can be found. (medscape.com)
  • Also known as gastric cancer, stomach cancer is a disease that occurs when cells in the stomacha hollow, muscular organ that receives and digests foodundergo abnormal changes that cause them to grow and divide uncontrollably. (stomachguide.net)
  • The esophagus also must clear any refluxed gastric contents back into the stomach and takes part in vomiting and belching. (nature.com)
  • When gastric cancer is found very early, there is a better chance of recovery. (stomachguide.net)
  • In addition, mtDNA stress in TFAM-deficient mouse melanoma cells produces tumours that are more resistant to doxorubicin in vivo. (regenerativemedicine.net)
  • Seeing two objects instead of one ( diplopia ) with a binocular view can arise from ocular misalignment caused by lesions of the brainstem and cerebellum. (medscape.com)
  • Watch this slideshow of precancerous lesions that may lead to skin cancer over time, including melanoma, basal cell carcinoma, and squamous cell carcinoma. (medicinenet.com)
  • Neoplasms of nonepithelial origin, although uncommon, are lesions that a busy gastrointestinal (GI) endoscopist can expect to encounter with some regularity. (clinicalgate.com)
  • Some sarcomas that arise in soft tissue mimic those that typically arise in cartilage or bone. (sarctrials.org)
  • This means cells grow and reproduce uncontrollably, producing a lump of tissue called a tumour. (stomachguide.net)
  • The protoplasmic glia are the most prevalent and are found in grey matter tissue, possess a larger quantity of organelles, and exhibit short and highly branched tertiary processes. (atozwiki.com)
  • The cells of the brain include neurons and supportive glial cells. (wikipedia.org)
  • Astrocytes (from Ancient Greek ἄστρον , ástron , "star" + κύτος , kútos , "cavity", "cell"), also known collectively as astroglia , are characteristic star-shaped glial cells in the brain and spinal cord . (atozwiki.com)
  • [4] Apolipoprotein E transports cholesterol from astrocytes to neurons and other glial cells, regulating cell signaling in the brain. (atozwiki.com)
  • Astrocytes are a sub-type of glial cells in the central nervous system . (atozwiki.com)
  • The radial glial cells are disposed in planes perpendicular to the axes of ventricles . (atozwiki.com)
  • This extremely rare sarcoma typically arises in the thigh or buttock of patients in their 20s. (sarctrials.org)
  • It typically arises in young men between 15 and 35. (sarctrials.org)
  • If the danger is not resolved and the immune battles must rage on, the mitochondria begin the complicated process of reallocating resources until the battle is won or the decision is made to institute what can only be described as suicide - cell death. (hormonesmatter.com)
  • But when cell death occurs from mitochondrial injury , it is messy, and evokes even broader immune responses, setting a cascade in motion that is difficult to arrest. (hormonesmatter.com)
  • Indeed, when we consider the trillions of microbes - clear non-self entities - that live inside and upon us, the idea that the immune system evolved simply to kill the non selves seems laughable. (hormonesmatter.com)
  • In contrast, if one characterizes immune function by its ability to protect and sustain life by fending off dangers or threats to survival, be they self or non-self, it does not matter, then we can be open to finding causes for those failed battles. (hormonesmatter.com)
  • We can ask questions like: what resources are missing that would allow the immune army to fend off the danger once and for all or what could heal the damaged cells, scavenge toxicants and oxidants or re-calibrate mitochondrial energy production? (hormonesmatter.com)
  • The objectives were to find the prevalence of overweight and obesity in the urban population of Jamnagar and to explore the effect of dietary factors on the weight status of the people. (researchpaper.sbs)
  • The prevalence of overweight and obesity was found to be 22.04% and 5.20%, respectively. (researchpaper.sbs)
  • having evolved over two billion years to identify and communicate signs of danger to the cells within which they reside. (hormonesmatter.com)
  • Learn to spot the early warning signs of skin cancer which can be cured treated if found early. (medicinenet.com)
  • An unusual and relatively less aggressive form of sarcoma that shows features of both fibroblasts and cells that retain fat (xanthomas). (sarctrials.org)
  • In cultured primary fibroblasts and cancer cells, the chemotherapeutic drug doxorubicin causes mtDNA damage and release, which leads to cGAS STING dependent ISG activation. (regenerativemedicine.net)
  • More and more, as I search for explanations for the devastating symptoms that so many of our readers report, the research I find points to mitochondrial dysfunction. (hormonesmatter.com)
  • Therefore, gastrointestinal symptoms persist despite using all the standard approaches for gastroparesis, functional dyspepsia, or unexplained nausea and vomiting. (bvsalud.org)
  • Gastroparesis syndromes (GpS) are a spectrum of disorders presenting with characteristic symptoms increasingly recognized as being gastrointestinal (GI) neuromuscular disorders (NMDs). (bvsalud.org)
  • The vessels of the lymphatic system are lined with cells very similar to those found in blood vessels and give rise to what is termed lymphangiosarcoma. (sarctrials.org)
  • An examination of the early human embryos in the Anatomical Department of King's College, London, indicates that the pineal organ of the human subject arises as a simple diverticulum from the roof of the third ventricle shortly after the 12-mm. stage of development, and that it is preceded by the formation of the posterior commissure. (edu.au)
  • In front of the pineal diverticulum was a solid mass of cells with spherical nuclei. (edu.au)
  • In brief, vascular endothelial growth factor-A (VEGF-A), which is a part of a large superfamily of growth factors, is required for differentiation of endothelial precursor cells. (basicmedicalkey.com)
  • Deletion mapping demonstrated single copy loss of a contiguous 1p36 terminal region encompassing many important neurodevelopmental genes, among them four HES genes implicated in regulating neural stem cell differentiation, and TP73 , a monoallelically expressed gene. (biomedcentral.com)
  • There are more than 86 billion neurons in the brain, and a more or less equal number of other cells. (wikipedia.org)
  • Both proteins are present in large amounts in the intermediate filaments of this cell, so the cell appears yellow. (atozwiki.com)
  • many of these cells express the intermediate filament glial fibrillary acidic protein (GFAP). (atozwiki.com)
  • Vimentin is a developmentally regulated intermediate filament protein (IFP) found in cells of mesenchymal origin. (thermofisher.com)
  • The complex architecture of the human body requires an efficient life-support system that transports gases, liquids, and other nutrients as well as circulating cells that play important roles in body defense systems. (basicmedicalkey.com)
  • Human immunodeficiency virus (HIV), however, utilizes a totally different mechanism: it reaches cerebral microglial cells using a "Trojan horse" mechanism that involves infection of macrophages. (pafrinhibitors.com)
  • Stomach cancer is caused by changes in the cells of the stomach, although it's unclear exactly why these changes occur. (stomachguide.net)
  • If you have stomach cancer, the doctor will want to find out how far it has spread to help decide what type of treatment is best for you. (stomachguide.net)
  • While, yes, this can be a sign of stomach cancer, it's also linked to tons of other conditions that aren't cancer-related, says Allyson Ocean, M.D., a gastrointestinal oncologist at Weill Cornell Medicine and New York Presbyterian. (stomachguide.net)
  • These are mostly asymptomatic and found incidentally during laparoscopy, surgical procedures or radiological studies. (scirp.org)
  • On clinical examination her vitals were normal and a soft large mobile mass was felt arising from the pelvis. (scirp.org)
  • On exploration uterus and both ovaries were found to be normal but a large retroperitoneal mass of size 28 cm × 22 cm which was adherent to small bowel was seen. (scirp.org)
  • [3] Another study reports that astrocytes are the most numerous cell type in the brain. (atozwiki.com)
  • Here, we find that persistent mtDNA stress is not associated with basally activated NF-κB signalling or interferon gene expression typical of an acute antiviral response. (regenerativemedicine.net)
  • The standard vascular markers used in pathologic differential diagnosis of vascular conditions include von Willebrand factor (vWF), factor VIII-associated protein, platelet endothelial cell adhesion molecule-1 (CD31), human hematopoietic progenitor cell antigen (CD34), v- ets avian erythroblastosis virus E26 oncogene homolog (ERG), human herpes virus 8 (HHV-8), latency-associated nuclear antigen (LANA1), podoplanin (D2-40), and PROX1. (basicmedicalkey.com)
  • Lung cancers are classified as either small cell or non-small cell cancers. (medicinenet.com)
  • This type often has astrocytic endfoot processes that physically connect the cells to the outside of capillary walls when they are in proximity to them. (atozwiki.com)
  • Cancer begins with a change in the structure of the DNA in cells, which can affect how they grow. (stomachguide.net)
  • Müller cells of the retina and Bergmann glia cells of the cerebellar cortex represent an exception, being present still during adulthood. (atozwiki.com)
  • Thousands of copies of the circular mtDNA are present in most cell types that are packaged by TFAM into higher-order structures called nucleoids1. (regenerativemedicine.net)
  • 3D bioprinting is the process of manipulating cell-laden bioinks to fabricate living structures. (preprints.org)