Man 21 yo fever and cough , thorax pain in breathing
Chest XRays suspection of pleural effusion.
CT scan with CE of the chest:
CT1: cross- section=.pleural effusion both 2 sites.
CT2 .frontal section.
CT3: frontal section in anterior mediastiumdetected one mass at retrosternum.
Blood test of WBC not raising.
Pleural tap removed yellowishliquid, but analysis was lower ADAlevel.
What is your suggestion and action in next step?