<prompt> A 53-year-old woman with ovarian tumor presents with breathlessness and right-sided chest pain. The chest X-ray shows obliteration of the right costophrenic angle. Diagnosis?PleurisyPericarditisMyocardial infarctionParapneumonic effusion  <response>: Ans. A PleurisyRef. CMDT 2019 pg. 323Ovarian tumor Fibroma and thecoma can be associated with a right-sided pleural effusion Meigs syndrome. The obliteration of CP angle on X-ray is another pointer for pleural involvement of this patient. 