Metastatic carcinoma to artero-venous haemangioma. Case report

A case of metastasis of primary lung-carcinoma to a cerebral artero-venous haemangioma is presented. Although the phenomenon of metastasis to primary brain neoplasm is being recognised with increasing frequency, we've found only two cases into vascular tumours reported. The authors emphasize the rarity of this occurrence and discuss the possible pathogenetic mechanisms, which are at present incompletely understood.