title: Congenital mastocytomas in a Holstein calf.
abstract: Congenital defects occur infrequently in cattle. In this report, a stillborn Holstein calf was presented for unusual nodules in the skin. Necropsy and histopathologic findings aided in the diagnosis of systemic mastocytoma, or mast cell tumor. The diagnosis of congenital mastocytoma in this case is extremely rare and unique.
authors.affiliation: Department of Clinical Studies, New Bolton Center, University of Pennsylvania, 382 West Street Road, Kennett Square, Pennsylvania 19348, USA.
authors.forename: B I
authors.initials: BI
authors.lastname: Smith
authors.forename: L A
authors.initials: LA
authors.lastname: Phillips
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000151:congenital* / Q000473:pathology; D017809:Fatal Outcome; D007150:Immunohistochemistry / Q000662:veterinary; D008297:Male; D012515:Mast-Cell Sarcoma / Q000151:congenital / Q000473:pathology / Q000662:veterinary*; D012878:Skin Neoplasms / Q000151:congenital / Q000473:pathology / Q000662:veterinary*; D014059:Tongue / Q000473:pathology