Below is the case for which I need your valuable answer
There and plenty number of reasons for fluid in lungs and also in pleura. You are talking about pleura I suppose in this case. The possibilities can be cardiac function may not have reached to normal levels so might be a cause of pleural effusion as your doctor says it is not TB. They are right it might be just a body reaction to a major illness causing increased ESR because ESR is a very non-specific test that can be increased in n number of conditions so it's not a diagnostic test