The ultrasonic appearance of extranodal abdominal lymphoma.

The sonographic manifestations of malignant lymphoma involving 70 extranodal sites in 51 patients are presented. Areas of involvement by nonHodgkin and Hodgkin lymphoma included the liver, spleen, kidneys, stomach, pancreas, and muscles. The sonographic appearance of lymphomatous lesions does not necessarily correlate with histologic subclassification. Similarly, atypical manifestations of lymphoma may resemble a variety of neoplastic and non-neoplastic processes. Extranodal lymphomatous abdominal disease was detected in six patients whose lymphangiograms demonstrated no evidence of disease.