disease onset/diagnosis measurement lymphoma onset/diagnosis measurement 2013-11-18T18:41:50Z Any measurement which expresses a quantity related to the beginning, early stages or development of a lymphoma, or to the official determination of lymphoma as the cause of the observed symptom(s). Lymphoma refers to any of various usually malignant neoplasms of lymphatic and reticuloendothelial tissues that occur as circumscribed solid tumors and that are composed of cells that resemble or originate from lymphocytes, plasma cells, or histiocytes. CMO:0001905 JSmith clinical_measurement_ontology lymphoma measurement