Published in:
Open Access
01-12-2021 | Kaposi's Sarcoma-Associated Herpesvirus | Critical Review
Emerging role of 18F-FDG PET/CT in Castleman disease: a review
Authors:
Benjamin Koa, Austin J. Borja, Mahmoud Aly, Sayuri Padmanabhan, Joseph Tran, Vincent Zhang, Chaitanya Rojulpote, Sheila K. Pierson, Mark-Avery Tamakloe, Johnson S. Khor, Thomas J. Werner, David C. Fajgenbaum, Abass Alavi, Mona-Elisabeth Revheim
Published in:
Insights into Imaging
|
Issue 1/2021
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Abstract
Castleman disease (CD) describes a group of rare hematologic conditions involving lymphadenopathy with characteristic histopathology and a spectrum of clinical abnormalities. CD is divided into localized or unicentric CD (UCD) and multicentric CD (MCD) by imaging. MCD is further divided based on etiological driver into human herpesvirus-8-associated MCD, POEMS-associated MCD, and idiopathic MCD. There is notable heterogeneity across MCD, but increased level of pro-inflammatory cytokines, particularly interleukin-6, is an established disease driver in a portion of patients. FDG-PET/CT can help determine UCD versus MCD, evaluate for neoplastic conditions that can mimic MCD clinico-pathologically, and monitor therapy responses. CD requires more robust characterization, earlier diagnosis, and an accurate tool for both monitoring and treatment response evaluation; FDG-PET/CT is particularly suited for this. Moving forward, future prospective studies should further characterize the use of FDG-PET/CT in CD and specifically explore the utility of global disease assessment and dual time point imaging.