Castleman disease in the hilum liver mimicking the lymph node metastasis of hepatocellular carcinoma on 18F-FDG PET/CT

摘要

Rationale:Castleman disease is a rare lymphoproliferative disorder which etiology is unknown. It is divided into 2 subtypes: the plasma cell variant and the hyaline vascular variant. The most common site is the hilum of the lungs and mediastinum. Castleman disease is often ignored by clinicians because of not frequently encountering in clinical and the lower uptake of ¹⁸F-FDG. Here, we report a case of hepatocellular carcinoma accompanied by Castleman disease in the hilum of the liver, which was misdiagnosed as the lymph node metastasis in ¹⁸F-FDG PET/CT imaging.