[Sjögren's syndrome and malignant lymphoma].

To diagnose and study the early stage of Sjögren's syndrome associated with malignant lymphoma, the authors used the PCR technique of B malignant lymphoma gene for lacrimal gland tissues in four patients with Sjögren's syndrome and in five patients suffering from B malignant lymphoma. The results showed that all cases of Sjögren's syndrome were negative and all cases of B malignant lymphoma were positive. These suggest that in general the patients with primary or secondary Sjögren's syndrome have no malignant lymphoma genes, but those who have chronic fever and enlarged superficial lymph nodes should under go this technique for early diagnosis and treatment of Sjögren's syndrome associated with malignant lymphoma.