Primary pulmonary sarcoma metastasising to the skin during pregnancy

Lung cancer during pregnancy is a rare situation which is being increasingly reported during the past two decades due to a rising trend of cigarette smoking among young women and the tendency to delay pregnancy to a later age in life. we describe the case of a 32-year-old woman with primary pulmonary sarcoma, diagnosed at 31st week of pregnancy. x-ray chest and thoracic magnetic resonance imaging revealed a 9 × 6 cm mass in the left mediastinum, with tracheal shift, and pleural effusion. biopsy performed during broncoscopy, was reported as mesenchymal tumour. she delivered a baby by caesarean section at the 32nd week of gestation due to the development of superior vena cava syndrome. a skin biopsy taken 3 weeks later from the nodular lesion at the periumblical region was reported as a tumour metastasis. she received radiotherapy for 10 days, but died in the intensive care unit. malignancies, even those as uncommon as a pulmonary sarcoma, should be considered in the differential diagnosis of pleural effusion during pregnancy.