The number, size, shape, attenuation, enhancement pattern and presence of intranodal fat of the following lymph "center"s were evaluated by two readers, including a board-certified radiologist: aortic lumbar, renal, hepatic, splenic, gastric, pancreaticoduodenal, jejunal, ileocecal, colic, caudal mesenteric, medial iliac, sacral and inguinal.