KIT (KIT proto-oncogene, receptor tyrosine kinase)

Despite overlapping pathological features, uterine and gastrointestinal stromal tumors differ clinically. Surgery is the primary treatment; comprehensive preoperative imaging and postoperative pathological examination are critical to prevent misdiagnosis and optimize management.

Mutation-specific NPM1 IHC is a valuable tool for a rapid assessment of residual morphologic and molecular disease in mid- and postinduction NPM1mut AML.

P-TNTs, which are tightly associated in situ with endothelial-pericyte combined sprouts, appear to play a dual role during vessel collateralization by bridging the gap between distant vessels and guiding vascular outgrowth. The complementary cellular distribution of c-KIT and SCF observed in endothelial cells and pericytes suggests that both endothelial autocrine/paracrine SCF/c-KIT signaling and pericyte-derived paracrine/juxtacrine SCF cues may contribute to the pericyte-driven mode of vessel branching. Similar observations in GB samples further suggest a potential involvement of pericytes and their P-TNTs in tumor vascularization, although sprouting endothelial cells displayed distinct subcellular patterns of c-KIT expression in fetal versus GB tissues.

cytopenias or organomegalies) and shorter PFS and overall survival. Our findings confirm the clinical, genetic and prognostic heterogeneity of SM-AHN and point out its association with the underlying oncogenic profile of neoplastic MC and AHN cells.

P3, N=482, Recruiting, Cogent Biosciences, Inc. | Active, not recruiting --> Recruiting

Multidisciplinary team approaches are essential for individualized care. Future progress depends on biomarker-driven trials, integration of novel strategies such as Chimeric Antigen Receptor T-Cell (CAR-T) therapy, and stronger international collaborative research to improve outcomes in this challenging malignancy.

The patient recovered uneventfully with resolution of bleeding and normalization of hemoglobin. This case highlights the importance of considering small bowel GIST in unexplained melena and severe anemia and demonstrates the curative potential of timely surgical resection in localized low-risk disease.

We conclude that KIT mutations, especially exon 17, confer a high-risk phenotype in otherwise favorable pediatric AML1::ETO AML. Our exploratory data suggest this may be associated with a chemoresistant profile, potentially driven by SOCS1-associated JAK-STAT dysregulation. These findings highlight the necessity of refined risk stratification based on KIT exon profiling and support targeting the SOCS1/JAK-STAT axis to overcome therapy resistance.

Delayed diagnosis due to occupational neglect allowed the tumor to reach an exceptional size. Although causal associations remain to be established, preventive strategies that reduce exposure to environmental carcinogens, address occupational stress, ensure adequate sleep, and promote routine scrotal self-examination and timely medical consultation may be considered on general health grounds.

The pathological findings were consistent with pineal region choriocarcinoma. The patient's serum β-HCG level decreased to <0.1 mIU/mL one year after surgery, and the child remained in good condition without recurrence during the 2-year follow-up.

GALNT7-mediated O-GalNAc glycosylation stabilizes KIT and drives GIST progression. GALNT7 may serve as a prognostic biomarker and therapeutic target in GIST.

Our study demonstrates a high sensitivity (100%) and specificity (93%) in utilizing cyclin D1 to distinguish MHNs (mature phenotype) from MS (immature phenotype) in diagnostic practice. It is particularly valuable in challenging scenarios of MS with the absence of immature/myeloid lineage-defining markers (MPO, CD34, or CD117) and provides a cost-effective tool to resolve this diagnostic pitfall, ensuring an accurate subclassification.