Malignant lymphoma (lymphoma) is a form of blood cancer with malignant proliferation of local or systemic lymphatic system malignancies, mainly involving lymph nodes and spleen. , liver and bone marrow.

Ultrasound-guided fine needle aspiration of the spleen is the most commonly performed procedure for diagnosing suspected lymphoma. To perform the procedure, a thin, hollow needle is inserted through the spleen to remove fluid. The small sample of cells is sent to a laboratory for examination under a microscope.