“…The association of pleural effusion with HBV infection is rarely reported, with only, to our knowledge, 14 cases previously described; of these, only two occurred during HBV reactivation [8][9][10] . Unlike our case, they occurred in the setting of severe hepatitis; even so, both patients had a good outcome without targeted therapy, as did our patient [8,9] . We propose that, in the setting of pleural effusion related to HBV infection, an accurate diagnostic aetiological work-up should be conducted with HBV viral load in pleural liquid also determined.…”