Spontaneous regression of a primary sarcoma of the pulmonary artery

Abstract

We report a case of spontaneous regression of a pulmonary sarcoma. A 76-year-old-woman was found to have a mass arising from the left pulmonary artery and extending into the left lung. Seven months later, the mass of the left lung lesion had shrunk without treatment, but metastases appeared in the left lung. Sarcoma was diagnosed with histological examination of tissue from the pulmonary metastases. The patient died after metastases appeared in the brain 22 months after presentation.