Print By Mayo Clinic Staff Request an appointment About June 23, 2023 Print Show references Extractable nuclear antigen (ENA) panel. Testing.com. https://www.testing.com/tests/extractable-nuclear-antigen-antibodies-ena-panel. Accessed March 21, 2023. Extractable nuclear antigens. Dorland's Medical Dictionary Online. https://www.dorlandsonline.com. Accessed March 21, 2023. Antinuclear antibodies (ANA). American College of Rheumatology. https://www.rheumatology.org/I-Am-A/Patient-Caregiver/Diseases-Conditions/Antinuclear-Antibodies-ANA. Accessed March 22, 2023. Antibody to extractable nuclear antigen evaluation, serum. Mayo Clinic Laboratories. https://www.mayocliniclabs.com/test-catalog/Overview/89035#Clinical-and-Interpretive. Accessed March 22, 2023. Goldman L, et al., eds. Laboratory testing in the rheumatic diseases. In: Goldman-Cecil Medicine. 26th ed. Elsevier; 2020. https://www.clinicalkey.com. Accessed March 21, 2023. Wallace DJ, et al. Clinical manifestations and diagnosis of systemic lupus erythematosus in adults. https://www.uptodate.com/contents/search. Accessed April 3, 2023. Ong V. Clinical manifestations and diagnosis of mixed connective tissue. https://www.uptodate.com/contents/search. Accessed April 3, 2023. Baer AN. Diagnosis and classification of Sjogren's syndrome. https://www.uptodate.com/contents/search. Accessed April 3, 2023. Varga J. Clinical manifestations and diagnosis of systemic sclerosis (scleroderma) in adults. https://www.uptodate.com/contents/search. Accessed April 3, 2023. Christopher-Stine C, et al. Diagnosis and differential diagnosis of dermatomyositis and polymyositis in adults. https://www.uptodate.com/contents/search. Accessed April 3, 2023. Related Dermatomyositis Lupus Mixed connective tissue disease Polymyositis Scleroderma Sjogren's syndrome Show more related content ENA testAbout PRC-20545513 Patient Care & Health Information Tests & Procedures ENA test