Positive antibodies include:Antinuclear antibody (ANA)
Anti-smooth muscle antibody (ASMA) - 65% of people
Anti-actin antibodies
Anti-mitochondrial antibodies - rare except for overlap syndromes with primary biliary cholangitis
Anti-soluble liver antigen/liver pancreas antibody antigen - 20% of people
Anti-double stranded DNA - 30% of people
Atypical perinuclear anti-neutrophil cytoplasmic antibodies (p-ANCA)
Type 2 autoimmune hepatitis. Positive antibodies include:Liver Kidney Microsomal antibody (LKM-1)
Anti-liver cytosol antibody-1 (SLC-1)
Autoantibody negative autoimmune hepatitis.Lack positive ANA, ASMA, LKM-1, etc. antibody panels but present with clinical features of autoimmune hepatitis that resolve with standard treatment. Differential diagnosis
Other diagnoses to consider include conditions that may cause acute hepatitis or chronic liver inflammation that may be accompanied by cirrhosis:

Other autoimmune diseases that involve the liver:
Primary biliary cholangitis - the presence of isolated elevated AMA antibodies usually signifies primary biliary cholangitis rather than autoimmune hepatitis and further diagnostic evaluation is needed. Overlap syndromes - autoimmune hepatitis may present similarly to primary sclerosing cholangitis but people with primary sclerosing cholangitis have stricturing and dilatation of intra/extra-hepatic ducts while people with autoimmune hepatitis generally have a spared biliary tree.
Diagnosis
Computed Tomography (CT) is generally not a recommended modality for diagnosis and evaluation of spinal cord tumors. Evaluation with Magnetic Resonance (MR) most commonly demonstrates a circumscribed solid or mixed solid and cystic mass spanning a long segment of the cord with hypointense T1 signal and hyperintense T2 signal in the solid component. Enhancement patterns are highly variable, ranging from minimal to marked, and may be solid, rim, or nodular. Adjacent cord edema and syringomyelia and peritumoral cysts may be present in addition to reactive scoliosis. It is nearly impossible to differentiate ganglioglioma from other more common intramedullary neoplasms based on imaging alone. Astrocytoma and ependymoma are more familiar intramedullary tumors which share many similar features to ganglioglioma, including T2 hyperintensity, enhancement, tumoral cysts, and cord edema. Poorly defined margins may be more suggestive of astrocytoma, while a central location in the spinal cord, hemorrhage, and hemosiderin staining are often seen with ependymoma. Hemangioblastoma and paraganglioma are less usual intramedullary tumors, but since they are more frequently encountered than ganglioglioma, they should also be included in the differential diagnosis. Treatment
Definitive treatment for ganglioglioma requires gross total surgical resection, and a good prognosis is generally expected when this is achieved. However, indistinct tumor margins and the desire to preserve normal spinal cord tissue, motor and sensory function may preclude complete resection of tumor. According to a series by Lang et al., reviewing several patients with resected spinal cord ganglioglioma, the 5- and 10-year survival rates after total resection were 89% and 83%, respectively.