This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
N ANA antibody is seen in - 
Select and explain. 
A. Sarcoidosis, B. Tuberculosis, C. Leprosy, D. Carcinoid
A: Sarcoidosis
Answer: A: Sarcoidosis 
Explanation: Answer is option1 Sarcoidosis is a chronic multisystem disorder characterized by an exaggerated cellular immune response to antigens with the production of various antibodies including rheumatoid factor and antinuclear antibodies (ANA). https:/ncbi.nlm.nih.gov.in