title: [Hemangioperocytoma in the infant. A histogenetic study].
abstract: Two children with hemangiopericytomas are reported-one with a congenital tumor, the second hemangiopericytoma was noticed during the first trimenon. Histologically there was no obvious difference to the hemangiopericytomas in adults. Tumor immaturity should not be seen as a nondifferentiation but as an embryonal immaturity. In analogy to other reticulo-histiocytic proliferations, reticular fibers, shown by silver impregnation, can be demonstrated in both cases. The silver stain should not be over-rated in its diagnostic and prognostic significance.
mesh_terms: D005153:Facial Neoplasms / Q000473:pathology; D005260:Female; D006393:Hemangiopericytoma / Q000151:congenital / Q000473:pathology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000473:pathology*; D012782:Shoulder; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000151:congenital / Q000473:pathology*
vernacular_title: Das Hämangioperizytom des Säuglings. Eine histogenetische Studie