Your
primaryPrimary amyloidosis
Primary biliary cirrhosis
Primary hyperparathyroidism
Primary insomnia
Primary lymphoma of the brain physician’s recommendations are sound and you should follow them. Resolution of the pneumonic infiltrate may be accompanied by disappearance of the nodule and that would erase all concerns. The majority of small nodules, which are less than 2 cm in diameter, are
benignBenign ear cyst or tumor
Benign positional vertigo, especially in non-smokers or those whose exposure was only second-hand. However, if your mother carried asbestos fibers home on her clothing that would pose a slight additional risk. If the nodule persists, following resolution of the pneumonia shadow, the radiologist may be better able to speculate on its origin, based on size, shape, density, smoothness and the presence or absence of calcification.
Good luck.