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.
Or it may be found on an X-ray or other type of scan. Nodules can be a sign of cancer, but more often they are benign (noncancerous) growths. Pulmonary nodules are small rounded growths in the lung. They're usually found on chest X-rays or CT scans.