Bilateral pneumothorax unveiling cystic pulmonary metastases from facial angiosarcoma: A case report.

Cutaneous angiosarcoma is a rare malignant vascular tumor that most often affects the scalp and face of elderly males. It is most frequently associated with lung metastases, with the appearance of thin-walled cyst. We report the case of a 78-year-old male who presented with acute chest pain and dyspnea, subsequently revealing bilateral pneumothorax caused by cystic pulmonary metastases from a neglected facial angiosarcoma. The diagnosis was confirmed through comprehensive radiological evaluations, emphasizing the critical role of CT imaging. This case underscores the critical need to not underestimate pneumothorax complicating cystic lung lesions and to consider angiosarcoma metastases, particularly in elderly men, as a potential diagnosis.