Chest Xray Nodule 3. 3. Suggests?

Recently did a tb xray test for uk pre departure screening and there was a small spot found in the right lung, however the doctor advised there is no evidence of pulmonary tb present. The doctors performed another xray with apicogram view and report provided with comments: Single calcified pulmonary nodule in right upper zone overlying the superior border of right 2nd rib (grade 3.3) Both hilla appear normal, mediastinum normal, cardiac size normal, both domes of diaphragm normal, CP angles are clear, soft tissues and bony cage is normal. Hence the results they have mentioned abnormal, what kind of medication or treatment do i require and what does this abnormality suggests? I don't have any pain or any other symptoms related to chest pain or breathing problem or fever, cough except a little fatigue.