And as it now turns out this signal is dependent on stimulation from thyroid hormone. In a just-published study scientists now believe that anemia may be the first sign of hypothyroidism, an issue they also document for subclinical hypothyroidism. In the past I have always viewed anemia as a thyroid disrupter.
Pulmonary nodules are small, focal, radiographic opacities that may be solitary or multiple. A classic solitary pulmonary nodule (SPN) is a single, spherical, well-circumscribed, radiographic opacity measuring less than or equal to 30 mm in diameter and is surrounded completely by aerated lung.
A solitary pulmonary nodule, or âcoin lesion,â is an approximately round lesion that is less than 3 cm in diameter and that is completely surrounded by pulmonary parenchyma, without other abnormalities. Lesions larger than 3 cm are called masses and are often malignant.