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Computed tomography enhancement characteristics of lymphomatous lymph nodes of the neck

¹ Department of Radiology, Rikshospitalet-Radiumhospitalet Medical Centre, Oslo, Norway; ² Department of Oncology, Rikshospitalet-Radiumhospitalet Medical Centre, Oslo, Norway; ³ Department of Radiation Biology, Rikshospitalet-Radiumhospitalet Medical Centre, Oslo, Norway

*Correspondence to: Trond Mogens Aaløkken, Department of Radiology, Rikshospitalet University Hospital, 0027 Oslo, Norway; Email: trond.mogens.aalokken{at}rikshospitalet.no

Received 8 May 2006; revised 28 August 2006; accepted 12 September 2006

Abstract

Objectives: The objective of this study was to investigate prospectively CT contrast medium enhancement curves of lymphomatous lymph nodes of the neck.

Material and methods: Eleven patients with biopsy-proven lymphoma had their enlarged cervical lymph nodes examined with dynamic CT and compared with a control group.

Results: The mean contrast medium enhancement of the lymphomatous nodes was significantly lower than that of the control group in the time interval from 40 s to 180 s after injection.

Discussion: The enhancement pattern previously suggested from studies of retroperitoneal lymph nodes was confirmed in this prospective study of cervical nodes.

Keywords: contrast medium; computed tomography (CT); lymph nodes; lymphoma; neck