• Ciro Manzo, Maria Maslinska, Alberto Castagna, Elvis Hysa, Alfonso Merante, Marcin Milchert, Tiziana Gravina, Betul Sargin, Maria Natale, Carmen Ruberto, and Giovanni Ruotolo.
• Azienda Sanitaria Locale Napoli 3 Sud, Internal and Geriatric Medicine Department, Rheumatologic Outpatient Clinic, Health District No. 59, Sant'Agnello, 80065 Naples, Italy.
• Medicina (Kaunas). 2021 Apr 6; 57 (4).

AbstractBackground and Objectives: Laboratory liver abnormalities can be observed in patients affected with polymyalgia rheumatica (PMR) and/or giant cell arteritis (GCA), especially with a cholestatic pattern. The first objective of our review article is to discuss the potential link between antimitochondrial antibodies (AMA) and/or primary biliary cholangitis (PBC) and PMR/GCA, according to the evidences of literature. The second objective is to discuss the association of PMR/GCA with the other rheumatic diseases having PBC as a common manifestation. Materials and Methods: A literature search was performed on PubMed and Medline (OVID interface) using these terms: polymyalgia rheumatica, giant cell arteritis, antimitochondrial antibodies, primary biliary cholangitis, primary Sjogren's syndrome, systemic sclerosis, and systemic lupus erythematosus. The search was restricted to all studies and case reports published in any language. Reviews, conference abstracts, comments, and non-original articles were excluded; however, each review's reference list was scanned for additional publications meeting this study's aim. When papers reported data partially presented in previous articles, we referred to the most recent published data. Results and Conclusions: Our literature search highlighted that cases reporting an association between AMA, PBC and PMR/GCA were very uncommon; AMA antigenic specificity had never been detected and biopsy-proven PBC was reported only in one patient with PMR/GCA. Finally, the association of PMR/GCA with autoimmune rheumatic diseases in which PBC is relatively common was anecdotal.

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