The primary site for male patients with malignant pleural effusions is:
A. Gastrointestinal tractMalignant pleural effusions may occur in association with a number of different malignancies, most commonly lung cancer, breast cancer, and lymphomas, depending on the patient's age and gender (Tables below).
Primary organ site or neoplasm type in male patients with malignant pleural effusions:
Primary organ site or neoplasm type in female patients with malignant pleural effusions: