Development of a recurrent pleural effusion in a patient with pulmonary arterial hypertension treated with imatinib Case Reports in Clinical Medicine Olga M. Fortenko, Lana Melendres-Groves, Alice Richter, Xiaobo Liao, Edda Spiekerkoetter, Roham Zamanian, Vinicio A. De Jesus Perez 2012; 1 (2): 38-41