obsolete_Guttmacher syndrome true OMIM:176305 ICD10:Q87.2 Replaced with Mondo term. MESH:C538278 orphanet http://purl.obolibrary.org/obo/MONDO_0008301 Preaxial deficiency - postaxial polydactyly - hypospadias Guttmacher syndrome is an extremely rare syndrome characterized by hypoplastic thumbs and halluces, 5th finger clinobrachydactyly, postaxial polydactyly of the hands, short or uniphalangeal 2nd toes with absent nails and hypospadias. 3.41.0 UMLS:C1867801