hodgkin's disease: a malignant disorder in which there is progressive (but painless) enlargement of lymph tissue followed by enlargement of the spleen and liver
lymphoma: a neoplasm of lymph tissue that is usually malignant; one of the four major types of cancer
stemless carline thistle: stemless perennial having large flowers with white or purple-brown florets nestled in a rosette of long spiny leaves hairy beneath; of alpine regions of southern and eastern Europe