Woman 54 yo with chest pain.Chest x-ray detected one round mass at right lung.( chest x-ray AP).
Ultrasound of the right lung represented this mass is hypoechoic like cyst (US).
MSCT CE (CT 1, CT 2, CT 3) = this mass is well bordered, size of 6 cm, adherent to the chest wall, with pleural effusion, no contrast enhancement.
Blood test of all cancer markers are negative.
What is your suggestion for diagnosis for the right lung mass?.