Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, India.
Microbiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, India.
Computer Science, Atash College of Management and Technology, Pandhurna, India.
Mechanical Engineering, Visvesvaraya National Institute Of Technology, NAGPUR, India.
The most common mesenchymal tumor affecting the gastrointestinal system is gastrointestinal stromal tumor (GIST). Although GISTs are a relatively new type of tumor, the under understanding of these tumors has increased quickly. Nevertheless, there is a dearth of research on this illness in India, and the majority of treatment plans are based on studies performed on populations outside of the nation. Since the 1990s, considerable progress has been made in our knowledge of the lineage of origin of the GIST domain. According to recent research, multipotent mesenchymal stem cells are the source of GISTs, which are thought to occur in 10-20 cases per million people annually. With the overexpression of the tyrosine kinase receptor KIT in intestinal Cajal cells, GISTs are the most prevalent malignant subepithelial lesions (SELs) in the digestive tract. GISTs can have a variety of morphologies, such as rhabdomyosarcoma, angiosarcoma, or undifferentiated pleomorphic sarcoma, which makes diagnosis difficult. However, new developments in molecular targeted therapy have transformed solid tumor oncology and provided exciting new avenues for treatment. To differentiate dedifferentiated GISTs from other gastrointestinal malignancies, this review paper will address current immunohistochemical markers and provide an outline of the morphologic and molecular features of these tumors. The findings also emphasize the importance of GIST genetic testing, progressive surgical approaches, adjuvant and neoadjuvant therapy for localized disorders, and metastatic condition-addressing methodologies. This article's major body explores the impact of imatinib therapy, the rarity of GISTs in pediatric patients, imaging methods for staging and monitoring, and difficulties with treating anorectal GISTs. This study highlights how crucial it is to pinpoint particular molecular subtypes to inform therapeutic choices for adjuvant and metastatic therapies.
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