Pathologic characteristics and treatment of lobular capillary hemangioma (pyogenic granuloma) in a Holstein calf

Lobular capillary hemangioma (LCH or pyogenic granuloma) is a benign vascular proliferation. It has features of a capillary hemangioma with a circumscribed aggregation of capillaries arranged in one or more lobules. It occurs in humans and rarely in animals. The present report describes pathologic findings of a pyogenic granuloma occurence on the mandibular gingiva of a Holstein calf. Grossly, the mass was polyploidy, reddish- to brown-colored, and pedunculated with an ulcerated surface that covered with a layer of white to yellow exudate. Histopathologic examination revealed characteristic lobular proliferation capillaries in a loose stroma. The stroma was formed from numerous fibroblasts, fibrocytes, and slender collagen fibers. It was edematous with scattered of mononuclear cells. Infiltration of neutrophils were visible adjust to the ulcerated area. Remarkable involution was seen after washing with povidone iodine 1%. This tumorlike lesion was diagnosed as LCH based on gross appearance, histopathologic features, and treatment by mouthwash povidone iodine.