Sarcoidosis and Cancer : A Complex Relationship

Copyright © 2020 El Jammal, Pavic, Gerfaud-Valentin, Jamilloux and Sève..

Sarcoidosis is a systemic disease of unknown etiology, characterized by the presence of non-caseating granulomas in various organs, mainly the lungs, and the lymphatic system. Since the individualization of sarcoidosis-lymphoma association by Brincker et al., the relationship between sarcoidosis or granulomatous syndromes and malignancies has been clarified through observational studies worldwide. Two recent meta-analyses showed an increased risk of neoplasia in sarcoidosis. The granulomatosis can also reveal malignancy, either solid or hematological, defining paraneoplastic sarcoidosis. Recent cancer immunotherapies, including immune checkpoint inhibitors (targeting PD-1, PD-L1, or CTLA-4) and BRAF or MEK inhibitors were also reported as possible inducers of sarcoidosis-like reactions. Sarcoidosis and neoplasia, especially lymphoma, can show overlapping presentations, thus making the diagnosis and treatment harder to deal with. There are currently no formal recommendations to guide the differential diagnosis workup between the evolution of lymphoma or a solid cancer and a granulomatous reaction associated with neoplasia. Thus, in atypical presentations (e.g., deeply impaired condition, compressive lymphadenopathy, atypical localization, unexplained worsening lymphadenopathy, or splenomegaly), and treatment-resistant disease, targeted biopsies on suspect localizations with histological examination could help the clinician to differentiate neoplasia from sarcoidosis. Pathological diagnosis could sometimes be challenging since very few tumor cells may be surrounded by massive granulomatous reaction. The sensitization of currently available diagnostic tools should improve the diagnostic accuracy, such as the use of more "cancer-specific" radioactive tracers coupled with Positron Emission Tomography scan.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:7

Enthalten in:

Frontiers in medicine - 7(2020) vom: 13., Seite 594118

Sprache:

Englisch

Beteiligte Personen:

El Jammal, Thomas [VerfasserIn]
Pavic, Michel [VerfasserIn]
Gerfaud-Valentin, Mathieu [VerfasserIn]
Jamilloux, Yvan [VerfasserIn]
Sève, Pascal [VerfasserIn]

Links:

Volltext

Themen:

Checkpoint inhibitor
Granulomatosis
Journal Article
Lymphoma
Neoplasia
Review
Sarcoidosis

Anmerkungen:

Date Revised 18.12.2020

published: Electronic-eCollection

Citation Status PubMed-not-MEDLINE

doi:

10.3389/fmed.2020.594118

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM318956055