Primary sclerosing cholangitis laboratory findings
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Dima Nimri, M.D. [2]
Overview
Laboratory Findings
The workup in patients with primary sclerosing cholangitis consists of LFTs, serum immunoglobulins, as well as a number of autoantibodies. Patients with primary sclerosing cholangitis typically have an elevated level of ALP, amongst other findings. However, laboratory results in many patients may be normal.[1][2][3][4][5][6]
Liver Function Tests
Primary sclerosing cholangitis typically has a cholestatic clinical picture with elevation of ALP, and aminotransferases (AST and ALT) may be elevated to 2-3 times of the upper normal level. However, LFTs may be normal.
Immunoglobulins
- Hypergammaglobulinemia
- Elevated IgM levels
- Elevated IgG4 levels
Autoantibodies and Serology
One or more of the following autoantibodies may be present in patients with primary sclerosing cholangitis:
- Anti-neutrophil cytoplasmic antibody (p-ANCA)
- Anti-nuclear antibody (ANA)
- Anti-smooth muscle antibody (Anti-Sm)
- Anti-endothelial antibody
- Anti-cardiolipin antibody
- Thyroperoxidase
- Thyroglobulin
- Rheumatoid factor (RF)
References
- ↑ Lazaridis KN, LaRusso NF (2016). "Primary Sclerosing Cholangitis". N. Engl. J. Med. 375 (12): 1161–70. doi:10.1056/NEJMra1506330. PMID 27653566.
- ↑ Chapman R, Fevery J, Kalloo A, Nagorney DM, Boberg KM, Shneider B, Gores GJ (2010). "Diagnosis and management of primary sclerosing cholangitis". Hepatology. 51 (2): 660–78. doi:10.1002/hep.23294. PMID 20101749.
- ↑ Lee YM, Kaplan MM (1995). "Primary sclerosing cholangitis". N. Engl. J. Med. 332 (14): 924–33. doi:10.1056/NEJM199504063321406. PMID 7877651.
- ↑ Angulo P, Peter JB, Gershwin ME, DeSotel CK, Shoenfeld Y, Ahmed AE, Lindor KD (2000). "Serum autoantibodies in patients with primary sclerosing cholangitis". J. Hepatol. 32 (2): 182–7. PMID 10707856.
- ↑ Mendes FD, Jorgensen R, Keach J, Katzmann JA, Smyrk T, Donlinger J, Chari S, Lindor KD (2006). "Elevated serum IgG4 concentration in patients with primary sclerosing cholangitis". Am. J. Gastroenterol. 101 (9): 2070–5. doi:10.1111/j.1572-0241.2006.00772.x. PMID 16879434.
- ↑ Hirano K, Kawabe T, Yamamoto N, Nakai Y, Sasahira N, Tsujino T, Toda N, Isayama H, Tada M, Omata M (2006). "Serum IgG4 concentrations in pancreatic and biliary diseases". Clin. Chim. Acta. 367 (1–2): 181–4. doi:10.1016/j.cca.2005.11.031. PMID 16426597.