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AC-22 - POLAR/GOLGI-like
Relevâncias Clínicas - Primeiro nível
Found in small numbers of patients with a variety of conditions
Antigens recognized include giantin/macrogolgin and distinct golgin molecules; specific immunoassays to detect autoantibodies directed to specific Golgi antigens are currently not commercially available
Relevâncias Clínicas - Segundo nível
The AC-22 pattern has been reported in small numbers of patients with a variety of conditions, including SjS, SLE, RA, MCTD, GPA, idiopathic cerebellar ataxia, paraneoplastic cerebellar degeneration, adult Still’s disease, and viral infections including HIV and EBV
Although possibly biased by the referral pattern, one study concluded that the AC-22 pattern is not clinically associated with SARD as there were only 1 SjS and 2 RA diagnoses among their 20 AC-22 positive cases collected over 10-years and a clinical follow-up observation ranging from 0 – 10 years; the remaining cases showed diverse diagnoses including 2 carcinomas
The AC-22 pattern is rare in the general population