My father's chest X-ray report is showing some concerning stuff and I'm quite worried. There's mention of something like a fibrotic patch with volume loss and consolidative opacities in the right upper zone, and it also says the right hilum is pulled up. The right dome of the diaphragm seems elevated with some opacity in the right CP angle. But it also mentions that the hili, CP angles, and the heart are normal, as well as the rib cage. There's a part about "FSO Koch's etiology" that makes me think it needs more investigation. Could you help me understand what all this means and what steps should be taken next?