Multi-modal Fusion Model and Deep Learning for Predicting Treatment Response in NKTCL

Inclusion Criteria: * 1\. Age ≥ 18 years. * 2\. Pathologically confirmed extranodal natural killer/T-cell lymphoma (NKTCL) according to the World Health Organization (WHO) classification. * 3\. Patients who are planned to receive first-line asparaginase-based chemotherapy or chemoradiotherapy. * 4\. Patients who have either contrast-enhanced MRI of the nasopharynx obtained as part of routine clinical care or pretreatment whole-slide images (WSI) of tumor tissue from hematoxylin and eosin (H\&E)-stained sections available for analysis. * 5\. Ability to understand the study and provide written informed consent (ICF). Exclusion Criteria: * 1\. History of other malignant tumors. * 2\. Patients with psychiatric disorders or those unable to provide informed consent.