Benign metastasizing leiomyoma - a case of benign metastasis.

Leiomyomas are benign tumours of smooth muscle cells that most often affect the female genital tract, but their metastasis to extra-uterine locations represent rare, yet misunderstood phenomena. The authors present a clinical case of a 42-year-old woman, who underwent a hysterectomy 15 years ago due to myomas, admitted with multiple pulmonary nodules and abdominal mass, diagnosed by imaging tests, in the context of haemoptysis. The anatomopathological exams of the pulmonary and abdominal lesions were compatible with the diagnosis of benign metastatic leiomyoma. Benign metastatic leiomyoma is a rare condition that particularly affects women of childbearing age, with a history of hysterectomy for uterine fibroids. Hence, this entity must be considered in the differential diagnosis of women with pulmonary nodules of uncertain aetiology.