Thymoma laboratory tests

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Amr Marawan, M.D. [2] Ahmad Al Maradni, M.D. [3]

Overview

Laboratory findings associated with thymoma may include antibodies against the acetylcholine receptor, abnormal electrolytes, renal, and liver function tests.

Laboratory Findings

Patients with thymoma can have the following laboratory findings:

• Pure red cell aplasia on bone marrow biopsy
• Hypogammaglobulinemia on protein electrophoresis
• Antibodies to the acetylcholine receptor (indicative of myasthenia gravis)
• Liver enzymes derangement
• Hypoalbuminemia
• Proteinuria
• Hyponatremia
• Hypercholesterolemia
• Antineutrophil antibody
• Anti-nuclear antibody (indicative of autoimmune hepatitis)