Routine screening serum tests to detect underlying thyroid and autoimmune diseases in patients with moyamoya disease.

Background: Recent studies have revealed that thyroid and autoimmune diseases may be associated with sporadic moyamoya disease. However, whether routine screening serum tests to detect these underlying diseases are useful or not remains unclear.

Methods: We retrospectively evaluated 459 patients with moyamoya disease but without previous history of thyroid or autoimmune diseases who underwent the screening serum tests targeting thyroid and autoimmune diseases from 2016 to 2023 in our institute.