The hilum pulmonis is wider than the normal standard, and there is an oval depression in the center of the medial surface of the lung called hilus of lung,hilum pulmonis, which is where the main bronchi, pulmonary arteries, pulmonary veins, and bronchial arteries, veins, lymphatics, and nerves enter and exit. There is an oblong depression in the middle of the mediastinal surface, called the hilum pulmonis. The upper part of the right pulmonary hilar is composed of the right upper pulmonary artery and branches of the pulmonary veins, and the lower part is composed of the right lower pulmonary artery; the left pulmonary hilar is composed of the left pulmonary artery and branches of the upper pulmonary veins. On the posterior-anterior chest image, the left pulmonary hilar is slightly higher than the right pulmonary hilar, and on the lateral chest image, the right pulmonary hilar is mostly located anteriorly and the left pulmonary hilar is located posteriorly. The abnormal changes such as enlargement and decrease in size suggest a lesion. Dietary care for widened hilum caused by mediastinal Hodgkin’s lymphoma: 1. Use more steaming, boiling and stewing in cooking, and eat less fried and deep-fried food. 2. To eliminate toxins. Do not eat acidic, salted, moldy, smoked, coloring, flavoring. Do not drink strong alcohol, preferably without alcohol. 3, eat more natural, wild food, eat less artificial reproduction and refined food. 4, reasonable tonic can improve immunity. Certain tonic products such as ginseng, white fungus, red dates, etc. have direct or indirect effects of cancer suppression and strengthening. 5.Eating should be balanced, no partial food, no taboo food, meat and vegetable, coarse and fine food, the more varieties of food the better.