A Practical Approach, Second Edition=Ronald D. Ho.pdf

Terminology of developmental abnormalities in common laboratory mammals (version 1): Extrernal abnormalities 1Region/Organ/StructureCodeNumberObservationSynonym orRelated TermNon-preferredTerm Definition NoteGeneral 10001 Anasarca Generalized edema Generalized edema10002 Conjoined twins Double monster Monozygotic twins with variableincomplete separation into two duringcleavage or early stages ofembryogenesis10003 Cutis aplasia Localized region of no skin development10004 Hemorrhage Petechia, Purpura,An accumulation of extravasated bloodEcchymosis, Hematoma10005 Local edema Localized accumulation of fluid10006 Oligohydramnios Less than normal amount of amnioticfluid10007 Polyhydramnios Excessive amount of amniotic fluidCranium 10008 Acephalostomia Acrania Absence of head but with the presenceof mouth-like orifice in the neck region10009 Acephaly Absence of the head10010 Anencephaly Acrania Absence of the cranial vault, with thebrain missing or reduced to smallmass(es)Site and extent of fusionmay be describedAcrania is a skeletal term10011 Cranioschisis Fissure of the cranium [Craniorachischisis]10012 Domed head Cranium appears more elevated androunded than normalMay or may not beassociated withhydrocephaly10013 Exencephaly Acrania The brain protrudes outside the skull dueto absence of the cranial vault10014 Iniencephaly Exposure of occipital brain and upperspinal cord tissue. Involves extremeretroflection of the head.10015 Macrocephaly Disproportionate largeness of head10016 Meningocele Herniation of meninges through defect inskull10017 Meningoencephalocele Encephalomeningocele Cephalocele,Craniocele,Encephalocele10018 Microcephaly Leptocephaly,NanocephalyHerniation of brain and meningesthrough a cranial openingSmall craniumErosion of brain tissue hasnot occurred as inAnencephalyMay or may not be coveredby skin922 DEVELOPMENTAL REPRODUCTIVE TOXICOLOGY: A PRACTICAL APPROACH, SECOND EDITION© 2006 by Taylor & Francis Group, LLC