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Amyloidosis in FDG-avid lymph nodes
Eman Abdou1, Ramila Amre, Marc Hickeson
1From the *Department of Nuclear Medicine, †Department of Pathology, and ‡Division of Hematology, Royal Victoria Hospital, McGill University Health Centre, Montreal, Quebec, Canada.
Abstract:
Amyloidosis in lymph node that is FDG-avid is an unusual diagnosis. FDG PET/CT showed the presence of multifocal lymphadenopathy mainly axillary with a mesenteric mass. Surgical lymph node biopsy with histological examination confirmed the diagnosis of amyloidosis in a 64-year-old woman with an initial left axillary pain. Amyloidosis should be considered on the differential diagnosis for a FDG-avid lymphadenopathy. Other differential diagnosis usually includes malignancy such as lymphoma or metastatic disease, infection, or sterile inflammation.
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