Nuclear Medicine and Molecular Imaging  2009;43(4):363-365

Intra-abdominal Kikuchi's Disease Mimicking Malignant Lymphoma on FDG PET-CT.

Hye Suk HAN 1 ; Gi Hyun KIM ; Young Shim CHO ; Hye Jin JOO ; Ok Jun LEE ; Dong Hee RYU ; Ki Hyeong LEE ; Seung Taik KIM

Affiliations

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Keywords

Abdomen; Kikuchi's disease; positron-emission tomography

Country

Republic of Korea

Language

English

Abstract

Kikuchi's disease is a self-limiting benign disease characterized by cervical lymphadenopathy, but it can be mistaken for malignant disease, and when involved lymph nodes are unusually located, diagnosis can be more difficult. The authors report the case of a 19-year-old man with Kikuchi's disease, who had isolated intraabdominal lymphadenopathy and increased 18-fluoro-deoxyglucose (FDG) uptake in positron emission tomographycomputed tomography (PET-CT). Although its incidence is extremely rare, intra-abdominal Kikuchi's disease with increased FDG uptake in PET-CT image should be considered in the differential diagnosis when constitutional symptoms mimic those of malignant lymphoma.