Definition: Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.
Input: Abstract: A 57-year-old woman with bilateral pneumothoraces secondary to pulmonary metastases from leiomyosarcoma of the uterus was treated successfully by intrapleural instillation of tetracycline.
Output:
Pleurodesis in metastatic pneumothorax.