Rheumatoid Arthritis in overlap is when RA is found with other autoimmune diseases or chronic illness.
RA is often found in overlap with other connective tissue diseases such as scleroderma, lupus, and polymyositis/dermatomyositis. It can also be found with other diseases such as thyroiditis, fibromyalgia, and sjogren's. (Also see What is Scleroderma?, Lupus, Dermatomyositis/Polymyositis, Thyroid Diseases, Fibromyalgia, Sjogren's, and Overlap Syndromes/MCTD/UCTD)
The effect on treatment response of fibromyalgic (FRA) symptoms in early rheumatoid arthritis (RA) patients: results from the ESPOIR cohort. Patients with FRA and RA will have a similar response to treatment, but may miss the target of remission or low disease activity. PubMed, Rheumatology (Oxford), 07/17/2015. (Also see Treatments for Rheumatoid Arthritis)
Salivary Gland Ultrasonography (US) as a Diagnostic Tool for Secondary Sjögren Syndrome (sSS) in Rheumatoid Arthritis (RA). Salivary gland US may aid the diagnosis of sSS in patients with RA. PubMed, J Rheumatol, 05/01/2015. (Also see Diagnosis of Sjögrens)
Diabetes mellitus (DM) risk factors in rheumatoid arthritis (RA): a systematic review and meta-analysis. RA is associated with increased risk of DM, including T1DM and T2DM. PubMed, Clin Exp Rheumatol, 2014 Dec 22. (Also see Symptoms and Complications of Diabetes)
Clinical and laboratory features of overlap syndromes of idiopathic inflammatory myopathies associated with systemic lupus erythematosus (SLE), systemic sclerosis (SSc), or rheumatoid arthritis (RA). The clinical manifestations of dermatomyositis/polymyositis were identified simultaneously with SSc and RA in the majority of cases, in contrast to identification in the SLE group. PubMed, Clin Rheumatol, 2014 Aug;33(8):1093-8. (Also see Lupus in Overlap)
Hypothyroidism in patients with rheumatoid arthritis (RA) and its relation to disease activity. Hypothyroidism was the most common thyroid disorder associated with RA, present in 24%, with a significant association with RA disease activity parameters. Egyptian Rheumatology and Rehabilitation, 05/14/2014.
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