These sigs and symptoms are most consistent with the diagnosis of pneumonia particularly staph pneumonia. Pneumatocoeles are thin walled cysts that contain air and may develop as a sequel to acute pneumonia commonly caused by staph. Pleural effusion can also be caused by a bacterial pneumonia. So these findings are most suggestive of pneumonia. You can discuss it with your doctor. Thanks and best wishes.
Yes, cancer is unlikely. Pneumatocoeles are usually seen in children though and in adults they are infrequent. They usually resolve spontaneously and completely. I do not think you need to worry for cancer. Thanks and best wishes.
You're most welcome.
Please, do not forget to click the ACCEPT BUTTON so that I can get credit for my work. BONUS and a POSITIVE FEEDBACK will be appreciated.