Malignant lymphoma of the vulva involving the genital tract is usually part of a systemic disease, commonly found in the gastrointestinal tract, pharyngeal lymphatic rings, and skin. Rupture of lymphatic vessels is one of the common symptoms of vulvar malignant lymphoma, which can trigger lymphatic vessels, inflammation, and thickening of the walls, dilatation of all lymphatic vessels between the intestinal trunk and the thoracic duct, dynamic obstruction due to incomplete closure of the valves in the vessels, and cause blockage of lymphatic fluid and increased pressure in the lymphatic vessels, with rupture occurring at the weakest point. Common examination items: pelvic CT examination: it can identify the nature of pelvic mass as substantial, cystic, vascular or fatty; identify the location of cryptorchidism, testicular tumor and its metastasis, which can provide clinical staging and treatment reference; understand the morphological changes of primary tumor and its spread and metastasis range, determine the stage of tumor, which is helpful to formulate treatment plan. Magnetic resonance enhancement scan: It is a CT or MR scan after injecting some contrast agent through the vein. The contrast agent is injected into the vein and distributed to all normal or abnormal tissues in the body with the blood. The blood supply and supply sources of various tissues are different, thus the distribution amount, distribution time and clearance speed of the contrast agent are different. Pelvic MRI: This is an MRI scan of the pelvis to check for lesions in the prostate, bladder and ovaries. Drink 500 ml of water 2 hours before routine pelvic MRI imaging to make the bladder full, and use peristaltic inhibiting drugs in advance if examining the bowel. Morphological examination of bone marrow cells of various lineages: It is a typing examination of human bone marrow cells, which is used to determine the diagnosis of certain hematopoietic or non-hematopoietic diseases and to assist in the diagnosis of certain hematopoietic diseases. Vaginal discharge examination: Vaginal discharge is the fluid secreted by the female reproductive system, also known as leukorrhea. The general trait examination is to observe the color and nature of the vaginal discharge.