This investigation was performed in Habana city, Cuba, at Calixto García Teching Hospital, on June 2002. The phyloid tomour represents 1 % of total mammarian neoplasias, being a fibroepithelial neoplasia. The histologyc features are: cellularity, mitotic margin, nuclear pleomorphysm, the excessive growing of stoma and infiltrative edges. It is showed a cases of a 52 years old woman, who had a malignant phyloid tomour besides, it is pointed out several considerations on clinical and pathologycal aspects of phyloid tomour.

This investigation was performed in Habana city, Cuba, at Calixto García Teching Hospital, on June 2002. The phyloid tomour represents 1 % of total mammarian neoplasias, being a fibroepithelial neoplasia. The histologyc features are: cellularity, mitotic margin, nuclear pleomorphysm, the excessive growing of stoma and infiltrative edges. It is showed a cases of a 52 years old woman, who had a malignant phyloid tomour besides, it is pointed out several considerations on clinical and pathologycal aspects of phyloid tomour.