An unforeseen reaction: Pyogenic granuloma induced by drug therapy

Pyogenic granuloma (PG) refers to a common, acquired, benign vascular tumor that arises in the skin and mucous membranes.PG can arise spontaneously, in sites of injury, or within capillary malformations.Histologically, PG is composed of capillaries and venules with plump endothelial cells separated into lobules by fibro-myxoid stroma.e development can be classified into (i) cellular phase, (ii) capillary phase or vascular phase, and (iii) involutionary phase.