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.
Causes of Solitary Pulmonary Nodules. Solitary pulmonary nodules may have the following causes: Neoplastic (an abnormal growth that can be benign or malignant): Lung cancer; Metastasis (spread of cancer from other parts of the body to the lung) Lymphoma (a tumor made up of lymphoid tissue) Carcinoid (a small, slow-growing tumor that can spread)