The aim is to describe the main forms and etiology of deep infantile hemangioma. On a clinical example, to show the erroneous diagnosis of sialadenitis in a child with deep infantile hemangioma against the background of congenital herpesvirus infection, hospitalized in the Department of Maxillofacial Surgery of the Moscow City Clinical Hospital. In 75% of cases of observation in children, tumors of the outer integument are represented by hemangiomas. Sialoadenitis develops against the background of acute (bacterial, viral) infections. Primary care specialists — pediatricians, pediatric surgeons and dentists in the presence of a mother’s history of placental insufficiency, hypoxic state of the fetus, the threat of termination of pregnancy and the use of hormonal and vascular drugs, the presence of a persistent infection, must include the child in the risk group for developing a vascular tumor.