<s>[INST] I was released from the hospital yesterday for dizzy spell and nausea. The test results I just looked at said there are streak nodular opacity in my right lung? What does this mean, is it damage from radiation therapy? And why didn t the hospital doctors mention it [/INST] Thanks for your question on Chat Doctor. There are many possibilities in your case as you are cancer patient and taking radiotherapy.1. Radiation pneumonitis. 2. Infective etiology3. Malignant spread itself. In my opinion it seems radiation pneumonitis more. As it is seen immediately after radiotherapy due to inflammation in lung. Since your lung defense has been lowered possibility of infection is always there. So better to undergo CT Thorax and if needed bronchoscopy and BAD (BronchoAlveolar Lavage) analysis. </s>