Buttons for leader lines Focal lymphoid thyroiditis (Fig. 15.24) with normal follicles is a common finding at autopsy in patients without evidence of clinical thyroid disease during life. Such histological changes have been shown to correlate with the presence of thyroid antibodies in the circulation Many patients with thyroid antibodies, while asymptomatic, can be shown to have minor biochemical disturbances of thyroid function. characterised by mild or moderately elevated TSH levels, while the serum T4 is in the normal range. This is known as compensated or subclinical hypothyroidism.