“…Occasionally the pericardial effusions are quite large, causing the appearance of cardiomegaly on the chest radiograph. 8 Up to 25% of patients with hypothyroidism may develop pleural effusion. 9 Cases of pleural effusion have been described in patients with subclinical hypothyroidism [elevated thyroid-stimulating hormone (TSH), normal FT4] and with elevated vascular endothelial growth factor, the latter having been related to excess extravascular…”