Hémangioendothéliome épithélioïde pulmonaire : à propos de deux observations

The first case report concerns a 59-year-old man presenting a chronic cough and the second a 23-year-old woman farmer presenting with worsening dyspnoea associated with cough, expectoration and haemoptysis. In the second case, the woman died 7 months after the onset of the respiratory symptoms. In both cases, chest radiography and thoracic CT scans showed multiple, bilateral pulmonary nodules, bronchial endoscopy was normal and surgical biopsy revealed epithelioid haemangioendothelioma. It is a rare primary pulmonary tumour which is usually found in soft tissue, bone or liver. Epithelioid haemangioendothelioma is a vascular tumour usually affecting women less than 40 years of age. The histological appearance is characteristic and may be confirmed by immunohistochemistry. Chemotherapy and radiotherapy are generally ineffective and surgery is sometimes impossible because of the multifocal lesions. Epithelioid haemangioendothelioma is considered a sarcoma without precise histological prognostic criteria. In its pulmonary location it is responsible for death due to respiratory failure in 50 % of cases.