Wechsler ring

Clinical examination of malignant lymphoma can reveal other lymphoid tissue sites such as pulleys, orbital lymph nodes, and Wechsler's rings. Malignant lymphoma. Immune cell tumors of lymph nodes and lymph nodes outside the nodule are derived from malignant changes in lymphocytes or histiocytes. Although malignant lymphoma is relatively rare in our country, new cases have been increasing year by year in recent years, at least more than 25,000 cases per year, and the incidence rate in western countries such as Europe, America and Australia can reach as high as 11 / 100,000 to 18 / 100,000. Higher than the sum of various types of leukemia. At least 30,000 new cases are found each year in the United States. The death rate of malignant lymphoma in China is 1.5 / 100,000, accounting for the 11th to 13th in the number of deaths of all malignant tumors, which is similar to leukemia. Moreover, malignant lymphoma has some characteristics in China: ① the central coastal region with high incidence and mortality; ② the peak of the age curve of onset is around 40 years old, there is no double-peak curve in Europe and the United States, and it is a single peak similar to Japan; ③ The proportion of Hodgkin's disease is lower than in European and American countries, but there is an increasing trend; ④ The proportion of follicular type in non-Hodgkin lymphoma is very low, and the diffuse type accounts for the vast majority; ⑤ Data show that 34% of T-cell lymphomas in China are similar to Japan and far more than in Europe and the United States.

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