[Benign metastasizing leiomyomas].

Benign metastasizing leiomyomas are rare tumours of the lung. The presenting symptoms are variable and the patients can be asymptomatic till a routine x-ray of the thorax is made (or at necropsies) and a history of uterine myomectomy is discarded. The mitotic rate is low and no cellular atypia is found but these tumours can be multiple, follow venous growth and be cause of breath inadequacy and death. Therapy has not yet been defined and can go from hysterectomy and ovariectomy to hormonal frenation with LH RH agonists. A case a benign metastasizing leiomyomas in a menopausal woman is described. A revision of literature is done.