F-18 FDG PET/CT Findings Showing Lymph Node Uptake in Patients With Kikuchi Disease

Abstract

Two women with Kikuchi disease (KD) underwent F-18 fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT). These findings mimicked malignant lymphoma. KD had been diagnosed based on the pathologic findings of a biopsy. The lymph nodes with the maximum standardized uptake value (SUVmax) were located in the neck and the axilla. All the lymph nodes had a diameter of less than 2.5 cm. F-18 FDG PET/CT was capable of visualizing general regions containing lymph nodes. KD should be considered when making a differential diagnosis of FDG-avid lymph node lesions in the neck or axilla.