BackgroundMalignant gastrointestinal neuroectodermal tumor (GNET) is a rare malignant mesenchymal neoplasm that commonly arises in the small bowel. stomach or colon. Meanwhile. SMARCA4-deficient undifferentiated carcinoma is a rarely reported entity with highly aggressive behavior that may involve the ovary. https://www.sofiatrophy.com/product-category/lp/