Blood vessel anomalities in the oral cavity of two calves

Rösti, Linda; Lauper, Josiane; Merhof, Kristina; Gorgas, Daniela; Ross, S.; Grest, P.; Welle, Monika Maria (2013). Blood vessel anomalities in the oral cavity of two calves. Schweizer Archiv für Tierheilkunde, 155(11), pp. 627-632. Huber 10.1024/0036-7281/a000525

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Two calves were presented with a congenital mass in the rostral mandibular gingiva. In both cases the masses relapsed after surgical removal. Histologically, the two masses were composed of irregularly arranged vascular cavities, embedded in loosely arranged stroma and alcian-blue PAS positive ground substance. Radiologically, a destruction of the alveolar cavity was recognized in both cases, which was in case 1 histologically compatible with bone resorption and remodeling associated with the infiltration of abundant granulation tissue. A literature survey revealed that no consistent criteria for a correct classification for vascular tumours exists, resulting in the fact that comparable lesions were named differently in the past. We therefore propose to classify such lesions as congential vascular malformation until distinct morphological, immunohistochemical and molecular genetic analysis criteria will exist.

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