Comparison of Two-Position and Four-Position Cervical Injection Techniques for Sentinel Lymph Node Mapping in Endometrial Cancer Using Methylene Blue

Inclusion Criteria: * Individuals diagnosed with stage I endometrial cancer based on CT and PET-CT imaging. * Individuals with a pathologically confirmed diagnosis of stage I endometrial cancer. Exclusion Criteria: Medical Conditions * Individuals diagnosed with dementia. * Individuals with allergies to methylene blue or iodine. * Individuals who have received active treatment for another malignancy within the past five years. * Inability to successfully perform PLD (pelvic lymphadenectomy) or history of prior PLD. * Women with multiple and confluent lymph nodes identified as positive on FDG-PET/CT (such cases are not considered stage I). Cancer-Related Conditions * Individuals with clinically or radiologically identified positive lymph nodes or metastatic disease. * Individuals with a history of pelvic dissection and/or radiation therapy. * Individuals with advanced cervical or uterine cancer. * Individuals with T3/T4 lesions. * Individuals with cervical tumors larger than 2 cm. Organ Dysfunction • Individuals with hepatic dysfunction and a MELD score ≥ 10 and creatinine ≥ 2·0 mg/dl patients.